diff mbox series

[3/3] utils: switch C to C++ headers

Message ID 20200511012549.1145814-3-rosenp@gmail.com (mailing list archive)
State New, archived
Headers show
Series [1/3] utils: replace chr functions with std variants | expand

Commit Message

Rosen Penev May 11, 2020, 1:25 a.m. UTC
Recently, I changed exit() to the std variant, which caused build
failures on older platforms. Switch all headers to the C++ variants
to avoid this.

These C headers are deprecated by C++14.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
---
 utils/cec-compliance/cec-compliance.cpp          | 10 +++++-----
 utils/cec-compliance/cec-test-adapter.cpp        | 10 +++++-----
 utils/cec-compliance/cec-test-audio.cpp          | 10 +++++-----
 utils/cec-compliance/cec-test-fuzzing.cpp        | 10 +++++-----
 utils/cec-compliance/cec-test-power.cpp          | 10 +++++-----
 utils/cec-compliance/cec-test.cpp                |  8 ++++----
 utils/cec-ctl/cec-ctl.cpp                        | 10 +++++-----
 utils/cec-ctl/cec-pin.cpp                        | 12 ++++++------
 utils/cec-follower/cec-follower.cpp              |  8 ++++----
 utils/cec-follower/cec-processing.cpp            | 10 +++++-----
 utils/cec-follower/cec-tuner.cpp                 |  2 +-
 utils/common/media-info.cpp                      | 10 +++++-----
 utils/common/v4l2-info.cpp                       | 10 +++++-----
 utils/libcecutil/cec-info.cpp                    |  2 +-
 utils/libcecutil/cec-log.cpp                     |  8 ++++----
 utils/libcecutil/cec-parse.cpp                   | 10 +++++-----
 utils/rds-ctl/rds-ctl.cpp                        | 14 +++++++-------
 utils/v4l2-compliance/v4l2-compliance.cpp        | 12 ++++++------
 utils/v4l2-compliance/v4l2-test-buffers.cpp      | 10 +++++-----
 utils/v4l2-compliance/v4l2-test-codecs.cpp       | 12 ++++++------
 utils/v4l2-compliance/v4l2-test-colors.cpp       | 12 ++++++------
 utils/v4l2-compliance/v4l2-test-controls.cpp     | 10 +++++-----
 utils/v4l2-compliance/v4l2-test-debug.cpp        | 12 ++++++------
 utils/v4l2-compliance/v4l2-test-formats.cpp      | 12 ++++++------
 utils/v4l2-compliance/v4l2-test-input-output.cpp | 10 +++++-----
 utils/v4l2-compliance/v4l2-test-io-config.cpp    | 10 +++++-----
 utils/v4l2-compliance/v4l2-test-media.cpp        | 12 ++++++------
 utils/v4l2-compliance/v4l2-test-subdevs.cpp      | 12 ++++++------
 utils/v4l2-ctl/v4l2-ctl-common.cpp               | 10 +++++-----
 utils/v4l2-ctl/v4l2-ctl-edid.cpp                 |  8 ++++----
 utils/v4l2-ctl/v4l2-ctl-io.cpp                   | 12 ++++++------
 utils/v4l2-ctl/v4l2-ctl-meta.cpp                 | 12 ++++++------
 utils/v4l2-ctl/v4l2-ctl-misc.cpp                 | 12 ++++++------
 utils/v4l2-ctl/v4l2-ctl-modes.cpp                |  4 ++--
 utils/v4l2-ctl/v4l2-ctl-overlay.cpp              | 12 ++++++------
 utils/v4l2-ctl/v4l2-ctl-sdr.cpp                  | 12 ++++++------
 utils/v4l2-ctl/v4l2-ctl-selection.cpp            | 12 ++++++------
 utils/v4l2-ctl/v4l2-ctl-stds.cpp                 | 12 ++++++------
 utils/v4l2-ctl/v4l2-ctl-streaming.cpp            | 10 +++++-----
 utils/v4l2-ctl/v4l2-ctl-subdev.cpp               | 12 ++++++------
 utils/v4l2-ctl/v4l2-ctl-tuner.cpp                | 10 +++++-----
 utils/v4l2-ctl/v4l2-ctl-vbi.cpp                  | 10 +++++-----
 utils/v4l2-ctl/v4l2-ctl-vidcap.cpp               | 12 ++++++------
 utils/v4l2-ctl/v4l2-ctl-vidout.cpp               | 12 ++++++------
 utils/v4l2-ctl/v4l2-ctl.cpp                      | 12 ++++++------
 utils/v4l2-dbg/v4l2-dbg.cpp                      | 10 +++++-----
 46 files changed, 236 insertions(+), 236 deletions(-)

Comments

Hans Verkuil May 11, 2020, 7:21 a.m. UTC | #1
On 11/05/2020 03:25, Rosen Penev wrote:
> Recently, I changed exit() to the std variant, which caused build
> failures on older platforms. Switch all headers to the C++ variants
> to avoid this.
> 
> These C headers are deprecated by C++14.

What build failure? Can you show what the error is? And which older
platforms?

I'd really like to know what the precise problem is that this patch
fixes.

I'll merge patches 1 and 2, but not this one. I need a better and more
detailed commit log message.

Regards,

	Hans


> 
> Signed-off-by: Rosen Penev <rosenp@gmail.com>
> ---
>  utils/cec-compliance/cec-compliance.cpp          | 10 +++++-----
>  utils/cec-compliance/cec-test-adapter.cpp        | 10 +++++-----
>  utils/cec-compliance/cec-test-audio.cpp          | 10 +++++-----
>  utils/cec-compliance/cec-test-fuzzing.cpp        | 10 +++++-----
>  utils/cec-compliance/cec-test-power.cpp          | 10 +++++-----
>  utils/cec-compliance/cec-test.cpp                |  8 ++++----
>  utils/cec-ctl/cec-ctl.cpp                        | 10 +++++-----
>  utils/cec-ctl/cec-pin.cpp                        | 12 ++++++------
>  utils/cec-follower/cec-follower.cpp              |  8 ++++----
>  utils/cec-follower/cec-processing.cpp            | 10 +++++-----
>  utils/cec-follower/cec-tuner.cpp                 |  2 +-
>  utils/common/media-info.cpp                      | 10 +++++-----
>  utils/common/v4l2-info.cpp                       | 10 +++++-----
>  utils/libcecutil/cec-info.cpp                    |  2 +-
>  utils/libcecutil/cec-log.cpp                     |  8 ++++----
>  utils/libcecutil/cec-parse.cpp                   | 10 +++++-----
>  utils/rds-ctl/rds-ctl.cpp                        | 14 +++++++-------
>  utils/v4l2-compliance/v4l2-compliance.cpp        | 12 ++++++------
>  utils/v4l2-compliance/v4l2-test-buffers.cpp      | 10 +++++-----
>  utils/v4l2-compliance/v4l2-test-codecs.cpp       | 12 ++++++------
>  utils/v4l2-compliance/v4l2-test-colors.cpp       | 12 ++++++------
>  utils/v4l2-compliance/v4l2-test-controls.cpp     | 10 +++++-----
>  utils/v4l2-compliance/v4l2-test-debug.cpp        | 12 ++++++------
>  utils/v4l2-compliance/v4l2-test-formats.cpp      | 12 ++++++------
>  utils/v4l2-compliance/v4l2-test-input-output.cpp | 10 +++++-----
>  utils/v4l2-compliance/v4l2-test-io-config.cpp    | 10 +++++-----
>  utils/v4l2-compliance/v4l2-test-media.cpp        | 12 ++++++------
>  utils/v4l2-compliance/v4l2-test-subdevs.cpp      | 12 ++++++------
>  utils/v4l2-ctl/v4l2-ctl-common.cpp               | 10 +++++-----
>  utils/v4l2-ctl/v4l2-ctl-edid.cpp                 |  8 ++++----
>  utils/v4l2-ctl/v4l2-ctl-io.cpp                   | 12 ++++++------
>  utils/v4l2-ctl/v4l2-ctl-meta.cpp                 | 12 ++++++------
>  utils/v4l2-ctl/v4l2-ctl-misc.cpp                 | 12 ++++++------
>  utils/v4l2-ctl/v4l2-ctl-modes.cpp                |  4 ++--
>  utils/v4l2-ctl/v4l2-ctl-overlay.cpp              | 12 ++++++------
>  utils/v4l2-ctl/v4l2-ctl-sdr.cpp                  | 12 ++++++------
>  utils/v4l2-ctl/v4l2-ctl-selection.cpp            | 12 ++++++------
>  utils/v4l2-ctl/v4l2-ctl-stds.cpp                 | 12 ++++++------
>  utils/v4l2-ctl/v4l2-ctl-streaming.cpp            | 10 +++++-----
>  utils/v4l2-ctl/v4l2-ctl-subdev.cpp               | 12 ++++++------
>  utils/v4l2-ctl/v4l2-ctl-tuner.cpp                | 10 +++++-----
>  utils/v4l2-ctl/v4l2-ctl-vbi.cpp                  | 10 +++++-----
>  utils/v4l2-ctl/v4l2-ctl-vidcap.cpp               | 12 ++++++------
>  utils/v4l2-ctl/v4l2-ctl-vidout.cpp               | 12 ++++++------
>  utils/v4l2-ctl/v4l2-ctl.cpp                      | 12 ++++++------
>  utils/v4l2-dbg/v4l2-dbg.cpp                      | 10 +++++-----
>  46 files changed, 236 insertions(+), 236 deletions(-)
> 
> diff --git a/utils/cec-compliance/cec-compliance.cpp b/utils/cec-compliance/cec-compliance.cpp
> index d0580579..60298846 100644
> --- a/utils/cec-compliance/cec-compliance.cpp
> +++ b/utils/cec-compliance/cec-compliance.cpp
> @@ -4,17 +4,17 @@
>   */
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <getopt.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <sys/time.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <sys/wait.h>
>  #include <sstream>
> diff --git a/utils/cec-compliance/cec-test-adapter.cpp b/utils/cec-compliance/cec-test-adapter.cpp
> index df7374df..b7a8159d 100644
> --- a/utils/cec-compliance/cec-test-adapter.cpp
> +++ b/utils/cec-compliance/cec-test-adapter.cpp
> @@ -4,16 +4,16 @@
>   */
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <getopt.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <sys/wait.h>
>  #include <sstream>
> diff --git a/utils/cec-compliance/cec-test-audio.cpp b/utils/cec-compliance/cec-test-audio.cpp
> index d422a7da..edf528c9 100644
> --- a/utils/cec-compliance/cec-test-audio.cpp
> +++ b/utils/cec-compliance/cec-test-audio.cpp
> @@ -4,15 +4,15 @@
>   */
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <config.h>
>  
> diff --git a/utils/cec-compliance/cec-test-fuzzing.cpp b/utils/cec-compliance/cec-test-fuzzing.cpp
> index ce0bf12d..708a8ec3 100644
> --- a/utils/cec-compliance/cec-test-fuzzing.cpp
> +++ b/utils/cec-compliance/cec-test-fuzzing.cpp
> @@ -4,15 +4,15 @@
>   */
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <config.h>
>  #include <sstream>
> diff --git a/utils/cec-compliance/cec-test-power.cpp b/utils/cec-compliance/cec-test-power.cpp
> index 2758c36d..e35264aa 100644
> --- a/utils/cec-compliance/cec-test-power.cpp
> +++ b/utils/cec-compliance/cec-test-power.cpp
> @@ -4,15 +4,15 @@
>   */
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <config.h>
>  
> diff --git a/utils/cec-compliance/cec-test.cpp b/utils/cec-compliance/cec-test.cpp
> index a84f83d3..1a05c5ae 100644
> --- a/utils/cec-compliance/cec-test.cpp
> +++ b/utils/cec-compliance/cec-test.cpp
> @@ -6,14 +6,14 @@
>  #include <cstring>
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> +#include <cstdlib>
> +#include <cstdio>
>  #include <inttypes.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <config.h>
>  #include <sstream>
> diff --git a/utils/cec-ctl/cec-ctl.cpp b/utils/cec-ctl/cec-ctl.cpp
> index 899b83b1..3c6c6f98 100644
> --- a/utils/cec-ctl/cec-ctl.cpp
> +++ b/utils/cec-ctl/cec-ctl.cpp
> @@ -6,8 +6,8 @@
>  #include <cstring>
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> +#include <cstdlib>
> +#include <cstdio>
>  #include <inttypes.h>
>  #include <getopt.h>
>  #include <sys/types.h>
> @@ -15,10 +15,10 @@
>  #include <sys/time.h>
>  #include <dirent.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
> -#include <stdarg.h>
> +#include <cstdarg>
>  #include <ctime>
>  #include <cerrno>
>  #include <string>
> diff --git a/utils/cec-ctl/cec-pin.cpp b/utils/cec-ctl/cec-pin.cpp
> index c09d6bbd..3ff4734f 100644
> --- a/utils/cec-ctl/cec-pin.cpp
> +++ b/utils/cec-ctl/cec-pin.cpp
> @@ -4,19 +4,19 @@
>   */
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <getopt.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <sys/time.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
> -#include <stdarg.h>
> +#include <cstdarg>
>  #include <cerrno>
>  #include <string>
>  #include <vector>
> diff --git a/utils/cec-follower/cec-follower.cpp b/utils/cec-follower/cec-follower.cpp
> index 589426ec..c6e0a1d1 100644
> --- a/utils/cec-follower/cec-follower.cpp
> +++ b/utils/cec-follower/cec-follower.cpp
> @@ -6,15 +6,15 @@
>  #include <cstring>
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> +#include <cstdlib>
> +#include <cstdio>
>  #include <inttypes.h>
>  #include <getopt.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <sys/wait.h>
>  #include <sstream>
> diff --git a/utils/cec-follower/cec-processing.cpp b/utils/cec-follower/cec-processing.cpp
> index bc8c9c09..e2c5c8e2 100644
> --- a/utils/cec-follower/cec-processing.cpp
> +++ b/utils/cec-follower/cec-processing.cpp
> @@ -4,16 +4,16 @@
>   */
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <sys/time.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <config.h>
>  
> diff --git a/utils/cec-follower/cec-tuner.cpp b/utils/cec-follower/cec-tuner.cpp
> index 4aecebce..7ac0decb 100644
> --- a/utils/cec-follower/cec-tuner.cpp
> +++ b/utils/cec-follower/cec-tuner.cpp
> @@ -4,7 +4,7 @@
>   */
>  
>  #include <sys/ioctl.h>
> -#include <stdlib.h>
> +#include <cstdlib>
>  
>  #include "cec-follower.h"
>  #include "compiler.h"
> diff --git a/utils/common/media-info.cpp b/utils/common/media-info.cpp
> index 8aa12f34..d37c5acb 100644
> --- a/utils/common/media-info.cpp
> +++ b/utils/common/media-info.cpp
> @@ -4,15 +4,15 @@
>   */
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <sys/time.h>
>  #include <sys/sysmacros.h>
> diff --git a/utils/common/v4l2-info.cpp b/utils/common/v4l2-info.cpp
> index 0aac8504..28116fd3 100644
> --- a/utils/common/v4l2-info.cpp
> +++ b/utils/common/v4l2-info.cpp
> @@ -4,15 +4,15 @@
>   */
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <sys/time.h>
>  #include <sys/sysmacros.h>
> diff --git a/utils/libcecutil/cec-info.cpp b/utils/libcecutil/cec-info.cpp
> index f6e60918..ed244437 100644
> --- a/utils/libcecutil/cec-info.cpp
> +++ b/utils/libcecutil/cec-info.cpp
> @@ -5,7 +5,7 @@
>   * Copyright 2017 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
>   */
>  
> -#include <stdio.h>
> +#include <cstdio>
>  #include <string>
>  #include <unistd.h>
>  #include <fcntl.h>
> diff --git a/utils/libcecutil/cec-log.cpp b/utils/libcecutil/cec-log.cpp
> index 0dcb4675..40028630 100644
> --- a/utils/libcecutil/cec-log.cpp
> +++ b/utils/libcecutil/cec-log.cpp
> @@ -4,11 +4,11 @@
>   */
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
> -#include <stdarg.h>
> +#include <cstdarg>
>  #include <string>
>  #include <linux/cec-funcs.h>
>  #include "cec-htng-funcs.h"
> diff --git a/utils/libcecutil/cec-parse.cpp b/utils/libcecutil/cec-parse.cpp
> index 8c869fec..024b6285 100644
> --- a/utils/libcecutil/cec-parse.cpp
> +++ b/utils/libcecutil/cec-parse.cpp
> @@ -4,8 +4,8 @@
>   */
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> +#include <cstdlib>
> +#include <cstdio>
>  #include <inttypes.h>
>  #include <getopt.h>
>  #include <sys/types.h>
> @@ -13,10 +13,10 @@
>  #include <sys/time.h>
>  #include <dirent.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
> -#include <stdarg.h>
> +#include <cstdarg>
>  #include <cstring>
>  #include <ctime>
>  #include <cerrno>
> diff --git a/utils/rds-ctl/rds-ctl.cpp b/utils/rds-ctl/rds-ctl.cpp
> index 73fc7e3c..fbc4d310 100644
> --- a/utils/rds-ctl/rds-ctl.cpp
> +++ b/utils/rds-ctl/rds-ctl.cpp
> @@ -8,21 +8,21 @@
>   */
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> -#include <wchar.h>
> -#include <locale.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
> +#include <cwchar>
> +#include <clocale>
>  #include <inttypes.h>
>  #include <getopt.h>
>  #include <sys/types.h>
>  #include <fcntl.h>
> -#include <errno.h>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <sys/time.h>
>  #include <dirent.h>
>  #include <config.h>
> -#include <signal.h>
> +#include <csignal>
>  
>  #include <linux/videodev2.h>
>  #include <libv4l2rds.h>
> diff --git a/utils/v4l2-compliance/v4l2-compliance.cpp b/utils/v4l2-compliance/v4l2-compliance.cpp
> index 549e37f7..49606975 100644
> --- a/utils/v4l2-compliance/v4l2-compliance.cpp
> +++ b/utils/v4l2-compliance/v4l2-compliance.cpp
> @@ -21,22 +21,22 @@
>  #include <cstring>
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> +#include <cstdlib>
> +#include <cstdio>
>  #include <inttypes.h>
>  #include <getopt.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <sys/time.h>
>  #include <sys/sysmacros.h>
>  #include <dirent.h>
> -#include <math.h>
> +#include <cmath>
>  #include <sys/utsname.h>
> -#include <signal.h>
> +#include <csignal>
>  #include <vector>
>  
>  #include "v4l2-compliance.h"
> diff --git a/utils/v4l2-compliance/v4l2-test-buffers.cpp b/utils/v4l2-compliance/v4l2-test-buffers.cpp
> index fc49fff6..e2df126d 100644
> --- a/utils/v4l2-compliance/v4l2-test-buffers.cpp
> +++ b/utils/v4l2-compliance/v4l2-test-buffers.cpp
> @@ -19,9 +19,9 @@
>   */
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
> @@ -29,8 +29,8 @@
>  #include <sys/wait.h>
>  #include <sys/epoll.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <poll.h>
>  #include <sys/ioctl.h>
>  #include <netinet/in.h>
> diff --git a/utils/v4l2-compliance/v4l2-test-codecs.cpp b/utils/v4l2-compliance/v4l2-test-codecs.cpp
> index 3fd44c8b..377574ec 100644
> --- a/utils/v4l2-compliance/v4l2-test-codecs.cpp
> +++ b/utils/v4l2-compliance/v4l2-test-codecs.cpp
> @@ -19,17 +19,17 @@
>   */
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
> -#include <assert.h>
> +#include <cassert>
>  #include "v4l2-compliance.h"
>  
>  int testEncoder(struct node *node)
> diff --git a/utils/v4l2-compliance/v4l2-test-colors.cpp b/utils/v4l2-compliance/v4l2-test-colors.cpp
> index 09d29a3e..6996877d 100644
> --- a/utils/v4l2-compliance/v4l2-test-colors.cpp
> +++ b/utils/v4l2-compliance/v4l2-test-colors.cpp
> @@ -15,19 +15,19 @@
>   */
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <getopt.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <sys/time.h>
> -#include <math.h>
> +#include <cmath>
>  
>  #include "compiler.h"
>  #include "v4l2-compliance.h"
> diff --git a/utils/v4l2-compliance/v4l2-test-controls.cpp b/utils/v4l2-compliance/v4l2-test-controls.cpp
> index d81dddb2..c3c27119 100644
> --- a/utils/v4l2-compliance/v4l2-test-controls.cpp
> +++ b/utils/v4l2-compliance/v4l2-test-controls.cpp
> @@ -19,15 +19,15 @@
>   */
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <vector>
>  
> diff --git a/utils/v4l2-compliance/v4l2-test-debug.cpp b/utils/v4l2-compliance/v4l2-test-debug.cpp
> index 3f43e661..206b4b82 100644
> --- a/utils/v4l2-compliance/v4l2-test-debug.cpp
> +++ b/utils/v4l2-compliance/v4l2-test-debug.cpp
> @@ -19,19 +19,19 @@
>   */
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <getopt.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <sys/time.h>
> -#include <math.h>
> +#include <cmath>
>  #include "v4l2-compliance.h"
>  
>  int testRegister(struct node *node)
> diff --git a/utils/v4l2-compliance/v4l2-test-formats.cpp b/utils/v4l2-compliance/v4l2-test-formats.cpp
> index e1b00f3c..7780442e 100644
> --- a/utils/v4l2-compliance/v4l2-test-formats.cpp
> +++ b/utils/v4l2-compliance/v4l2-test-formats.cpp
> @@ -19,17 +19,17 @@
>   */
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
> -#include <assert.h>
> +#include <cassert>
>  
>  #include "compiler.h"
>  #include "v4l2-compliance.h"
> diff --git a/utils/v4l2-compliance/v4l2-test-input-output.cpp b/utils/v4l2-compliance/v4l2-test-input-output.cpp
> index 80ecf75d..a7fe81d8 100644
> --- a/utils/v4l2-compliance/v4l2-test-input-output.cpp
> +++ b/utils/v4l2-compliance/v4l2-test-input-output.cpp
> @@ -19,15 +19,15 @@
>   */
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include "v4l2-compliance.h"
>  
> diff --git a/utils/v4l2-compliance/v4l2-test-io-config.cpp b/utils/v4l2-compliance/v4l2-test-io-config.cpp
> index 9ade11e8..be885cb3 100644
> --- a/utils/v4l2-compliance/v4l2-test-io-config.cpp
> +++ b/utils/v4l2-compliance/v4l2-test-io-config.cpp
> @@ -19,15 +19,15 @@
>   */
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include "v4l2-compliance.h"
>  
> diff --git a/utils/v4l2-compliance/v4l2-test-media.cpp b/utils/v4l2-compliance/v4l2-test-media.cpp
> index bcd8a725..94c25932 100644
> --- a/utils/v4l2-compliance/v4l2-test-media.cpp
> +++ b/utils/v4l2-compliance/v4l2-test-media.cpp
> @@ -19,19 +19,19 @@
>   */
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <sys/sysmacros.h>
>  #include <fcntl.h>
>  #include <dirent.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
> -#include <assert.h>
> +#include <cassert>
>  #include <set>
>  #include <fstream>
>  
> diff --git a/utils/v4l2-compliance/v4l2-test-subdevs.cpp b/utils/v4l2-compliance/v4l2-test-subdevs.cpp
> index 489639fb..54d3c430 100644
> --- a/utils/v4l2-compliance/v4l2-test-subdevs.cpp
> +++ b/utils/v4l2-compliance/v4l2-test-subdevs.cpp
> @@ -19,17 +19,17 @@
>   */
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
> -#include <assert.h>
> +#include <cassert>
>  
>  #include "v4l2-compliance.h"
>  
> diff --git a/utils/v4l2-ctl/v4l2-ctl-common.cpp b/utils/v4l2-ctl/v4l2-ctl-common.cpp
> index 0640a521..bf267432 100644
> --- a/utils/v4l2-ctl/v4l2-ctl-common.cpp
> +++ b/utils/v4l2-ctl/v4l2-ctl-common.cpp
> @@ -1,18 +1,18 @@
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> +#include <cstdlib>
> +#include <cstdio>
>  #include <inttypes.h>
>  #include <getopt.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <sys/sysmacros.h>
>  #include <sys/time.h>
>  #include <dirent.h>
> -#include <math.h>
> +#include <cmath>
>  #include <linux/media.h>
>  
>  #include "v4l2-ctl.h"
> diff --git a/utils/v4l2-ctl/v4l2-ctl-edid.cpp b/utils/v4l2-ctl/v4l2-ctl-edid.cpp
> index b13d8209..d028d248 100644
> --- a/utils/v4l2-ctl/v4l2-ctl-edid.cpp
> +++ b/utils/v4l2-ctl/v4l2-ctl-edid.cpp
> @@ -1,12 +1,12 @@
>  #include <cstring>
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> +#include <cstdlib>
> +#include <cstdio>
>  #include <inttypes.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  
>  #include "v4l2-ctl.h"
> diff --git a/utils/v4l2-ctl/v4l2-ctl-io.cpp b/utils/v4l2-ctl/v4l2-ctl-io.cpp
> index 9e83c03a..379198b5 100644
> --- a/utils/v4l2-ctl/v4l2-ctl-io.cpp
> +++ b/utils/v4l2-ctl/v4l2-ctl-io.cpp
> @@ -1,18 +1,18 @@
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <getopt.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <sys/time.h>
>  #include <dirent.h>
> -#include <math.h>
> +#include <cmath>
>  
>  #include "v4l2-ctl.h"
>  
> diff --git a/utils/v4l2-ctl/v4l2-ctl-meta.cpp b/utils/v4l2-ctl/v4l2-ctl-meta.cpp
> index 3e71a6eb..718be765 100644
> --- a/utils/v4l2-ctl/v4l2-ctl-meta.cpp
> +++ b/utils/v4l2-ctl/v4l2-ctl-meta.cpp
> @@ -1,18 +1,18 @@
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <getopt.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <sys/time.h>
>  #include <dirent.h>
> -#include <math.h>
> +#include <cmath>
>  
>  #include "v4l2-ctl.h"
>  
> diff --git a/utils/v4l2-ctl/v4l2-ctl-misc.cpp b/utils/v4l2-ctl/v4l2-ctl-misc.cpp
> index deb481b4..5a89aa7e 100644
> --- a/utils/v4l2-ctl/v4l2-ctl-misc.cpp
> +++ b/utils/v4l2-ctl/v4l2-ctl-misc.cpp
> @@ -1,18 +1,18 @@
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <getopt.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <sys/time.h>
>  #include <dirent.h>
> -#include <math.h>
> +#include <cmath>
>  
>  #include "v4l2-ctl.h"
>  
> diff --git a/utils/v4l2-ctl/v4l2-ctl-modes.cpp b/utils/v4l2-ctl/v4l2-ctl-modes.cpp
> index b311ce5d..e076be6e 100644
> --- a/utils/v4l2-ctl/v4l2-ctl-modes.cpp
> +++ b/utils/v4l2-ctl/v4l2-ctl-modes.cpp
> @@ -6,8 +6,8 @@
>   * reserved.
>   */
>  
> -#include <stdio.h>
> -#include <stdbool.h>
> +#include <cstdio>
> +
>  #include "v4l2-ctl.h"
>  
>  static bool valid_params(int width, int height, int refresh_rate)
> diff --git a/utils/v4l2-ctl/v4l2-ctl-overlay.cpp b/utils/v4l2-ctl/v4l2-ctl-overlay.cpp
> index 16344a15..a16e10db 100644
> --- a/utils/v4l2-ctl/v4l2-ctl-overlay.cpp
> +++ b/utils/v4l2-ctl/v4l2-ctl-overlay.cpp
> @@ -1,18 +1,18 @@
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <getopt.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <sys/time.h>
>  #include <dirent.h>
> -#include <math.h>
> +#include <cmath>
>  
>  #include <linux/fb.h>
>  #include <vector>
> diff --git a/utils/v4l2-ctl/v4l2-ctl-sdr.cpp b/utils/v4l2-ctl/v4l2-ctl-sdr.cpp
> index 71a65913..67603285 100644
> --- a/utils/v4l2-ctl/v4l2-ctl-sdr.cpp
> +++ b/utils/v4l2-ctl/v4l2-ctl-sdr.cpp
> @@ -1,18 +1,18 @@
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <getopt.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <sys/time.h>
>  #include <dirent.h>
> -#include <math.h>
> +#include <cmath>
>  
>  #include "v4l2-ctl.h"
>  
> diff --git a/utils/v4l2-ctl/v4l2-ctl-selection.cpp b/utils/v4l2-ctl/v4l2-ctl-selection.cpp
> index be62eb03..9f3e0397 100644
> --- a/utils/v4l2-ctl/v4l2-ctl-selection.cpp
> +++ b/utils/v4l2-ctl/v4l2-ctl-selection.cpp
> @@ -1,18 +1,18 @@
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <getopt.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <sys/time.h>
>  #include <dirent.h>
> -#include <math.h>
> +#include <cmath>
>  
>  #include "v4l2-ctl.h"
>  
> diff --git a/utils/v4l2-ctl/v4l2-ctl-stds.cpp b/utils/v4l2-ctl/v4l2-ctl-stds.cpp
> index 8dd06c43..3eb67316 100644
> --- a/utils/v4l2-ctl/v4l2-ctl-stds.cpp
> +++ b/utils/v4l2-ctl/v4l2-ctl-stds.cpp
> @@ -1,18 +1,18 @@
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <getopt.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <sys/time.h>
>  #include <dirent.h>
> -#include <math.h>
> +#include <cmath>
>  
>  #include "v4l2-ctl.h"
>  
> diff --git a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
> index 8578610d..fab8f36b 100644
> --- a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
> +++ b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
> @@ -1,8 +1,8 @@
>  #include <cstring>
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> +#include <cstdlib>
> +#include <cstdio>
>  #include <inttypes.h>
>  #include <getopt.h>
>  #include <sys/types.h>
> @@ -11,13 +11,13 @@
>  #include <netinet/in.h>
>  #include <netdb.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <sys/time.h>
>  #include <sys/mman.h>
>  #include <dirent.h>
> -#include <math.h>
> +#include <cmath>
>  #include <linux/media.h>
>  
>  #include "compiler.h"
> diff --git a/utils/v4l2-ctl/v4l2-ctl-subdev.cpp b/utils/v4l2-ctl/v4l2-ctl-subdev.cpp
> index 9e17a58d..1bf35b1d 100644
> --- a/utils/v4l2-ctl/v4l2-ctl-subdev.cpp
> +++ b/utils/v4l2-ctl/v4l2-ctl-subdev.cpp
> @@ -1,18 +1,18 @@
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <getopt.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <sys/time.h>
>  #include <dirent.h>
> -#include <math.h>
> +#include <cmath>
>  
>  #include "v4l2-ctl.h"
>  
> diff --git a/utils/v4l2-ctl/v4l2-ctl-tuner.cpp b/utils/v4l2-ctl/v4l2-ctl-tuner.cpp
> index 981b8765..54635998 100644
> --- a/utils/v4l2-ctl/v4l2-ctl-tuner.cpp
> +++ b/utils/v4l2-ctl/v4l2-ctl-tuner.cpp
> @@ -1,14 +1,14 @@
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <getopt.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <sys/time.h>
>  #include <dirent.h>
> diff --git a/utils/v4l2-ctl/v4l2-ctl-vbi.cpp b/utils/v4l2-ctl/v4l2-ctl-vbi.cpp
> index ee55012f..c09bc3e2 100644
> --- a/utils/v4l2-ctl/v4l2-ctl-vbi.cpp
> +++ b/utils/v4l2-ctl/v4l2-ctl-vbi.cpp
> @@ -1,19 +1,19 @@
>  #include <cstring>
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> +#include <cstdlib>
> +#include <cstdio>
>  #include <inttypes.h>
>  #include <getopt.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <sys/time.h>
>  #include <dirent.h>
> -#include <math.h>
> +#include <cmath>
>  
>  #include "compiler.h"
>  #include "v4l2-ctl.h"
> diff --git a/utils/v4l2-ctl/v4l2-ctl-vidcap.cpp b/utils/v4l2-ctl/v4l2-ctl-vidcap.cpp
> index 6e920c1d..68896248 100644
> --- a/utils/v4l2-ctl/v4l2-ctl-vidcap.cpp
> +++ b/utils/v4l2-ctl/v4l2-ctl-vidcap.cpp
> @@ -1,18 +1,18 @@
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <getopt.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <sys/time.h>
>  #include <dirent.h>
> -#include <math.h>
> +#include <cmath>
>  
>  #include "v4l2-ctl.h"
>  
> diff --git a/utils/v4l2-ctl/v4l2-ctl-vidout.cpp b/utils/v4l2-ctl/v4l2-ctl-vidout.cpp
> index e3cb4bcb..39952eef 100644
> --- a/utils/v4l2-ctl/v4l2-ctl-vidout.cpp
> +++ b/utils/v4l2-ctl/v4l2-ctl-vidout.cpp
> @@ -1,18 +1,18 @@
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <getopt.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <sys/time.h>
>  #include <dirent.h>
> -#include <math.h>
> +#include <cmath>
>  
>  #include "v4l2-ctl.h"
>  
> diff --git a/utils/v4l2-ctl/v4l2-ctl.cpp b/utils/v4l2-ctl/v4l2-ctl.cpp
> index e7b270cd..3d784bc2 100644
> --- a/utils/v4l2-ctl/v4l2-ctl.cpp
> +++ b/utils/v4l2-ctl/v4l2-ctl.cpp
> @@ -21,22 +21,22 @@
>   */
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> -#include <string.h>
> +#include <cstdlib>
> +#include <cstdio>
> +#include <cstring>
>  #include <inttypes.h>
>  #include <getopt.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <sys/epoll.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <sys/time.h>
>  #include <sys/sysmacros.h>
>  #include <dirent.h>
> -#include <math.h>
> +#include <cmath>
>  
>  #include <linux/media.h>
>  
> diff --git a/utils/v4l2-dbg/v4l2-dbg.cpp b/utils/v4l2-dbg/v4l2-dbg.cpp
> index 06301ae0..765362f6 100644
> --- a/utils/v4l2-dbg/v4l2-dbg.cpp
> +++ b/utils/v4l2-dbg/v4l2-dbg.cpp
> @@ -17,18 +17,18 @@
>   */
>  
>  #include <unistd.h>
> -#include <stdlib.h>
> -#include <stdio.h>
> +#include <cstdlib>
> +#include <cstdio>
>  #include <inttypes.h>
>  #include <getopt.h>
>  #include <sys/types.h>
>  #include <sys/stat.h>
>  #include <fcntl.h>
> -#include <ctype.h>
> -#include <errno.h>
> +#include <cctype>
> +#include <cerrno>
>  #include <sys/ioctl.h>
>  #include <sys/time.h>
> -#include <math.h>
> +#include <cmath>
>  
>  #ifdef ANDROID
>  #include <android-config.h>
>
Rosen Penev May 12, 2020, 8:51 p.m. UTC | #2
On Mon, May 11, 2020 at 12:21 AM Hans Verkuil <hverkuil@xs4all.nl> wrote:
>
> On 11/05/2020 03:25, Rosen Penev wrote:
> > Recently, I changed exit() to the std variant, which caused build
> > failures on older platforms. Switch all headers to the C++ variants
> > to avoid this.
> >
> > These C headers are deprecated by C++14.
>
> What build failure? Can you show what the error is? And which older
> platforms?
I actually cannot build this anymore. I'm getting some weird syscall errors:

../lib/libv4l2/../libv4lconvert/libv4lsyscall-priv.h:116:10: error:
‘SYS_mmap2’ undeclared (first use in this function)
  116 |  syscall(SYS_mmap2, (void *)(addr), (size_t)(len), \
      |          ^~~~~~~~~
../lib/libv4l2/libv4l2.c:112:44: note: in expansion of macro ‘SYS_MMAP’
  112 |  devices[index].convert_mmap_buf = (void *)SYS_MMAP(NULL,
      |                                            ^~~~~~~~
../lib/libv4l2/../libv4lconvert/libv4lsyscall-priv.h:116:10: note:
each undeclared identifier is reported only once for each function it
appears in
  116 |  syscall(SYS_mmap2, (void *)(addr), (size_t)(len), \
      |          ^~~~~~~~~
../lib/libv4l2/libv4l2.c:112:44: note: in expansion of macro ‘SYS_MMAP’
  112 |  devices[index].convert_mmap_buf = (void *)SYS_MMAP(NULL,
      |                                            ^~~~~~~~
../lib/libv4l2/../libv4lconvert/libv4lsyscall-priv.h:117:59: error:
‘MMAP2_PAGE_SHIFT’ undeclared (first use in this function); did you
mean ‘MAP_HUGE_SHIFT’?
  117 |    (int)(prot), (int)(flags), (int)(fd), (off_t)((off) >>
MMAP2_PAGE_SHIFT))
      |
^~~~~~~~~~~~~~~~
../lib/libv4l2/libv4l2.c:112:44: note: in expansion of macro ‘SYS_MMAP’
  112 |  devices[index].convert_mmap_buf = (void *)SYS_MMAP(NULL,
      |                                            ^~~~~~~~
../lib/libv4l2/libv4l2.c: In function ‘v4l2_map_buffers’:
../lib/libv4l2/../libv4lconvert/libv4lsyscall-priv.h:116:10: error:
‘SYS_mmap2’ undeclared (first use in this function)
  116 |  syscall(SYS_mmap2, (void *)(addr), (size_t)(len), \

Some other patch broke this I guess. This is on Fedora 32.
>
> I'd really like to know what the precise problem is that this patch
> fixes.
>
> I'll merge patches 1 and 2, but not this one. I need a better and more
> detailed commit log message.
>
> Regards,
>
>         Hans
>
>
> >
> > Signed-off-by: Rosen Penev <rosenp@gmail.com>
> > ---
> >  utils/cec-compliance/cec-compliance.cpp          | 10 +++++-----
> >  utils/cec-compliance/cec-test-adapter.cpp        | 10 +++++-----
> >  utils/cec-compliance/cec-test-audio.cpp          | 10 +++++-----
> >  utils/cec-compliance/cec-test-fuzzing.cpp        | 10 +++++-----
> >  utils/cec-compliance/cec-test-power.cpp          | 10 +++++-----
> >  utils/cec-compliance/cec-test.cpp                |  8 ++++----
> >  utils/cec-ctl/cec-ctl.cpp                        | 10 +++++-----
> >  utils/cec-ctl/cec-pin.cpp                        | 12 ++++++------
> >  utils/cec-follower/cec-follower.cpp              |  8 ++++----
> >  utils/cec-follower/cec-processing.cpp            | 10 +++++-----
> >  utils/cec-follower/cec-tuner.cpp                 |  2 +-
> >  utils/common/media-info.cpp                      | 10 +++++-----
> >  utils/common/v4l2-info.cpp                       | 10 +++++-----
> >  utils/libcecutil/cec-info.cpp                    |  2 +-
> >  utils/libcecutil/cec-log.cpp                     |  8 ++++----
> >  utils/libcecutil/cec-parse.cpp                   | 10 +++++-----
> >  utils/rds-ctl/rds-ctl.cpp                        | 14 +++++++-------
> >  utils/v4l2-compliance/v4l2-compliance.cpp        | 12 ++++++------
> >  utils/v4l2-compliance/v4l2-test-buffers.cpp      | 10 +++++-----
> >  utils/v4l2-compliance/v4l2-test-codecs.cpp       | 12 ++++++------
> >  utils/v4l2-compliance/v4l2-test-colors.cpp       | 12 ++++++------
> >  utils/v4l2-compliance/v4l2-test-controls.cpp     | 10 +++++-----
> >  utils/v4l2-compliance/v4l2-test-debug.cpp        | 12 ++++++------
> >  utils/v4l2-compliance/v4l2-test-formats.cpp      | 12 ++++++------
> >  utils/v4l2-compliance/v4l2-test-input-output.cpp | 10 +++++-----
> >  utils/v4l2-compliance/v4l2-test-io-config.cpp    | 10 +++++-----
> >  utils/v4l2-compliance/v4l2-test-media.cpp        | 12 ++++++------
> >  utils/v4l2-compliance/v4l2-test-subdevs.cpp      | 12 ++++++------
> >  utils/v4l2-ctl/v4l2-ctl-common.cpp               | 10 +++++-----
> >  utils/v4l2-ctl/v4l2-ctl-edid.cpp                 |  8 ++++----
> >  utils/v4l2-ctl/v4l2-ctl-io.cpp                   | 12 ++++++------
> >  utils/v4l2-ctl/v4l2-ctl-meta.cpp                 | 12 ++++++------
> >  utils/v4l2-ctl/v4l2-ctl-misc.cpp                 | 12 ++++++------
> >  utils/v4l2-ctl/v4l2-ctl-modes.cpp                |  4 ++--
> >  utils/v4l2-ctl/v4l2-ctl-overlay.cpp              | 12 ++++++------
> >  utils/v4l2-ctl/v4l2-ctl-sdr.cpp                  | 12 ++++++------
> >  utils/v4l2-ctl/v4l2-ctl-selection.cpp            | 12 ++++++------
> >  utils/v4l2-ctl/v4l2-ctl-stds.cpp                 | 12 ++++++------
> >  utils/v4l2-ctl/v4l2-ctl-streaming.cpp            | 10 +++++-----
> >  utils/v4l2-ctl/v4l2-ctl-subdev.cpp               | 12 ++++++------
> >  utils/v4l2-ctl/v4l2-ctl-tuner.cpp                | 10 +++++-----
> >  utils/v4l2-ctl/v4l2-ctl-vbi.cpp                  | 10 +++++-----
> >  utils/v4l2-ctl/v4l2-ctl-vidcap.cpp               | 12 ++++++------
> >  utils/v4l2-ctl/v4l2-ctl-vidout.cpp               | 12 ++++++------
> >  utils/v4l2-ctl/v4l2-ctl.cpp                      | 12 ++++++------
> >  utils/v4l2-dbg/v4l2-dbg.cpp                      | 10 +++++-----
> >  46 files changed, 236 insertions(+), 236 deletions(-)
> >
> > diff --git a/utils/cec-compliance/cec-compliance.cpp b/utils/cec-compliance/cec-compliance.cpp
> > index d0580579..60298846 100644
> > --- a/utils/cec-compliance/cec-compliance.cpp
> > +++ b/utils/cec-compliance/cec-compliance.cpp
> > @@ -4,17 +4,17 @@
> >   */
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <getopt.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <sys/time.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <sys/wait.h>
> >  #include <sstream>
> > diff --git a/utils/cec-compliance/cec-test-adapter.cpp b/utils/cec-compliance/cec-test-adapter.cpp
> > index df7374df..b7a8159d 100644
> > --- a/utils/cec-compliance/cec-test-adapter.cpp
> > +++ b/utils/cec-compliance/cec-test-adapter.cpp
> > @@ -4,16 +4,16 @@
> >   */
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <getopt.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <sys/wait.h>
> >  #include <sstream>
> > diff --git a/utils/cec-compliance/cec-test-audio.cpp b/utils/cec-compliance/cec-test-audio.cpp
> > index d422a7da..edf528c9 100644
> > --- a/utils/cec-compliance/cec-test-audio.cpp
> > +++ b/utils/cec-compliance/cec-test-audio.cpp
> > @@ -4,15 +4,15 @@
> >   */
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <config.h>
> >
> > diff --git a/utils/cec-compliance/cec-test-fuzzing.cpp b/utils/cec-compliance/cec-test-fuzzing.cpp
> > index ce0bf12d..708a8ec3 100644
> > --- a/utils/cec-compliance/cec-test-fuzzing.cpp
> > +++ b/utils/cec-compliance/cec-test-fuzzing.cpp
> > @@ -4,15 +4,15 @@
> >   */
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <config.h>
> >  #include <sstream>
> > diff --git a/utils/cec-compliance/cec-test-power.cpp b/utils/cec-compliance/cec-test-power.cpp
> > index 2758c36d..e35264aa 100644
> > --- a/utils/cec-compliance/cec-test-power.cpp
> > +++ b/utils/cec-compliance/cec-test-power.cpp
> > @@ -4,15 +4,15 @@
> >   */
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <config.h>
> >
> > diff --git a/utils/cec-compliance/cec-test.cpp b/utils/cec-compliance/cec-test.cpp
> > index a84f83d3..1a05c5ae 100644
> > --- a/utils/cec-compliance/cec-test.cpp
> > +++ b/utils/cec-compliance/cec-test.cpp
> > @@ -6,14 +6,14 @@
> >  #include <cstring>
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> >  #include <inttypes.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <config.h>
> >  #include <sstream>
> > diff --git a/utils/cec-ctl/cec-ctl.cpp b/utils/cec-ctl/cec-ctl.cpp
> > index 899b83b1..3c6c6f98 100644
> > --- a/utils/cec-ctl/cec-ctl.cpp
> > +++ b/utils/cec-ctl/cec-ctl.cpp
> > @@ -6,8 +6,8 @@
> >  #include <cstring>
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> >  #include <inttypes.h>
> >  #include <getopt.h>
> >  #include <sys/types.h>
> > @@ -15,10 +15,10 @@
> >  #include <sys/time.h>
> >  #include <dirent.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> > -#include <stdarg.h>
> > +#include <cstdarg>
> >  #include <ctime>
> >  #include <cerrno>
> >  #include <string>
> > diff --git a/utils/cec-ctl/cec-pin.cpp b/utils/cec-ctl/cec-pin.cpp
> > index c09d6bbd..3ff4734f 100644
> > --- a/utils/cec-ctl/cec-pin.cpp
> > +++ b/utils/cec-ctl/cec-pin.cpp
> > @@ -4,19 +4,19 @@
> >   */
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <getopt.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <sys/time.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> > -#include <stdarg.h>
> > +#include <cstdarg>
> >  #include <cerrno>
> >  #include <string>
> >  #include <vector>
> > diff --git a/utils/cec-follower/cec-follower.cpp b/utils/cec-follower/cec-follower.cpp
> > index 589426ec..c6e0a1d1 100644
> > --- a/utils/cec-follower/cec-follower.cpp
> > +++ b/utils/cec-follower/cec-follower.cpp
> > @@ -6,15 +6,15 @@
> >  #include <cstring>
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> >  #include <inttypes.h>
> >  #include <getopt.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <sys/wait.h>
> >  #include <sstream>
> > diff --git a/utils/cec-follower/cec-processing.cpp b/utils/cec-follower/cec-processing.cpp
> > index bc8c9c09..e2c5c8e2 100644
> > --- a/utils/cec-follower/cec-processing.cpp
> > +++ b/utils/cec-follower/cec-processing.cpp
> > @@ -4,16 +4,16 @@
> >   */
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <sys/time.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <config.h>
> >
> > diff --git a/utils/cec-follower/cec-tuner.cpp b/utils/cec-follower/cec-tuner.cpp
> > index 4aecebce..7ac0decb 100644
> > --- a/utils/cec-follower/cec-tuner.cpp
> > +++ b/utils/cec-follower/cec-tuner.cpp
> > @@ -4,7 +4,7 @@
> >   */
> >
> >  #include <sys/ioctl.h>
> > -#include <stdlib.h>
> > +#include <cstdlib>
> >
> >  #include "cec-follower.h"
> >  #include "compiler.h"
> > diff --git a/utils/common/media-info.cpp b/utils/common/media-info.cpp
> > index 8aa12f34..d37c5acb 100644
> > --- a/utils/common/media-info.cpp
> > +++ b/utils/common/media-info.cpp
> > @@ -4,15 +4,15 @@
> >   */
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <sys/time.h>
> >  #include <sys/sysmacros.h>
> > diff --git a/utils/common/v4l2-info.cpp b/utils/common/v4l2-info.cpp
> > index 0aac8504..28116fd3 100644
> > --- a/utils/common/v4l2-info.cpp
> > +++ b/utils/common/v4l2-info.cpp
> > @@ -4,15 +4,15 @@
> >   */
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <sys/time.h>
> >  #include <sys/sysmacros.h>
> > diff --git a/utils/libcecutil/cec-info.cpp b/utils/libcecutil/cec-info.cpp
> > index f6e60918..ed244437 100644
> > --- a/utils/libcecutil/cec-info.cpp
> > +++ b/utils/libcecutil/cec-info.cpp
> > @@ -5,7 +5,7 @@
> >   * Copyright 2017 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
> >   */
> >
> > -#include <stdio.h>
> > +#include <cstdio>
> >  #include <string>
> >  #include <unistd.h>
> >  #include <fcntl.h>
> > diff --git a/utils/libcecutil/cec-log.cpp b/utils/libcecutil/cec-log.cpp
> > index 0dcb4675..40028630 100644
> > --- a/utils/libcecutil/cec-log.cpp
> > +++ b/utils/libcecutil/cec-log.cpp
> > @@ -4,11 +4,11 @@
> >   */
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> > -#include <stdarg.h>
> > +#include <cstdarg>
> >  #include <string>
> >  #include <linux/cec-funcs.h>
> >  #include "cec-htng-funcs.h"
> > diff --git a/utils/libcecutil/cec-parse.cpp b/utils/libcecutil/cec-parse.cpp
> > index 8c869fec..024b6285 100644
> > --- a/utils/libcecutil/cec-parse.cpp
> > +++ b/utils/libcecutil/cec-parse.cpp
> > @@ -4,8 +4,8 @@
> >   */
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> >  #include <inttypes.h>
> >  #include <getopt.h>
> >  #include <sys/types.h>
> > @@ -13,10 +13,10 @@
> >  #include <sys/time.h>
> >  #include <dirent.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> > -#include <stdarg.h>
> > +#include <cstdarg>
> >  #include <cstring>
> >  #include <ctime>
> >  #include <cerrno>
> > diff --git a/utils/rds-ctl/rds-ctl.cpp b/utils/rds-ctl/rds-ctl.cpp
> > index 73fc7e3c..fbc4d310 100644
> > --- a/utils/rds-ctl/rds-ctl.cpp
> > +++ b/utils/rds-ctl/rds-ctl.cpp
> > @@ -8,21 +8,21 @@
> >   */
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > -#include <wchar.h>
> > -#include <locale.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> > +#include <cwchar>
> > +#include <clocale>
> >  #include <inttypes.h>
> >  #include <getopt.h>
> >  #include <sys/types.h>
> >  #include <fcntl.h>
> > -#include <errno.h>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <sys/time.h>
> >  #include <dirent.h>
> >  #include <config.h>
> > -#include <signal.h>
> > +#include <csignal>
> >
> >  #include <linux/videodev2.h>
> >  #include <libv4l2rds.h>
> > diff --git a/utils/v4l2-compliance/v4l2-compliance.cpp b/utils/v4l2-compliance/v4l2-compliance.cpp
> > index 549e37f7..49606975 100644
> > --- a/utils/v4l2-compliance/v4l2-compliance.cpp
> > +++ b/utils/v4l2-compliance/v4l2-compliance.cpp
> > @@ -21,22 +21,22 @@
> >  #include <cstring>
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> >  #include <inttypes.h>
> >  #include <getopt.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <sys/time.h>
> >  #include <sys/sysmacros.h>
> >  #include <dirent.h>
> > -#include <math.h>
> > +#include <cmath>
> >  #include <sys/utsname.h>
> > -#include <signal.h>
> > +#include <csignal>
> >  #include <vector>
> >
> >  #include "v4l2-compliance.h"
> > diff --git a/utils/v4l2-compliance/v4l2-test-buffers.cpp b/utils/v4l2-compliance/v4l2-test-buffers.cpp
> > index fc49fff6..e2df126d 100644
> > --- a/utils/v4l2-compliance/v4l2-test-buffers.cpp
> > +++ b/utils/v4l2-compliance/v4l2-test-buffers.cpp
> > @@ -19,9 +19,9 @@
> >   */
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> > @@ -29,8 +29,8 @@
> >  #include <sys/wait.h>
> >  #include <sys/epoll.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <poll.h>
> >  #include <sys/ioctl.h>
> >  #include <netinet/in.h>
> > diff --git a/utils/v4l2-compliance/v4l2-test-codecs.cpp b/utils/v4l2-compliance/v4l2-test-codecs.cpp
> > index 3fd44c8b..377574ec 100644
> > --- a/utils/v4l2-compliance/v4l2-test-codecs.cpp
> > +++ b/utils/v4l2-compliance/v4l2-test-codecs.cpp
> > @@ -19,17 +19,17 @@
> >   */
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> > -#include <assert.h>
> > +#include <cassert>
> >  #include "v4l2-compliance.h"
> >
> >  int testEncoder(struct node *node)
> > diff --git a/utils/v4l2-compliance/v4l2-test-colors.cpp b/utils/v4l2-compliance/v4l2-test-colors.cpp
> > index 09d29a3e..6996877d 100644
> > --- a/utils/v4l2-compliance/v4l2-test-colors.cpp
> > +++ b/utils/v4l2-compliance/v4l2-test-colors.cpp
> > @@ -15,19 +15,19 @@
> >   */
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <getopt.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <sys/time.h>
> > -#include <math.h>
> > +#include <cmath>
> >
> >  #include "compiler.h"
> >  #include "v4l2-compliance.h"
> > diff --git a/utils/v4l2-compliance/v4l2-test-controls.cpp b/utils/v4l2-compliance/v4l2-test-controls.cpp
> > index d81dddb2..c3c27119 100644
> > --- a/utils/v4l2-compliance/v4l2-test-controls.cpp
> > +++ b/utils/v4l2-compliance/v4l2-test-controls.cpp
> > @@ -19,15 +19,15 @@
> >   */
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <vector>
> >
> > diff --git a/utils/v4l2-compliance/v4l2-test-debug.cpp b/utils/v4l2-compliance/v4l2-test-debug.cpp
> > index 3f43e661..206b4b82 100644
> > --- a/utils/v4l2-compliance/v4l2-test-debug.cpp
> > +++ b/utils/v4l2-compliance/v4l2-test-debug.cpp
> > @@ -19,19 +19,19 @@
> >   */
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <getopt.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <sys/time.h>
> > -#include <math.h>
> > +#include <cmath>
> >  #include "v4l2-compliance.h"
> >
> >  int testRegister(struct node *node)
> > diff --git a/utils/v4l2-compliance/v4l2-test-formats.cpp b/utils/v4l2-compliance/v4l2-test-formats.cpp
> > index e1b00f3c..7780442e 100644
> > --- a/utils/v4l2-compliance/v4l2-test-formats.cpp
> > +++ b/utils/v4l2-compliance/v4l2-test-formats.cpp
> > @@ -19,17 +19,17 @@
> >   */
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> > -#include <assert.h>
> > +#include <cassert>
> >
> >  #include "compiler.h"
> >  #include "v4l2-compliance.h"
> > diff --git a/utils/v4l2-compliance/v4l2-test-input-output.cpp b/utils/v4l2-compliance/v4l2-test-input-output.cpp
> > index 80ecf75d..a7fe81d8 100644
> > --- a/utils/v4l2-compliance/v4l2-test-input-output.cpp
> > +++ b/utils/v4l2-compliance/v4l2-test-input-output.cpp
> > @@ -19,15 +19,15 @@
> >   */
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include "v4l2-compliance.h"
> >
> > diff --git a/utils/v4l2-compliance/v4l2-test-io-config.cpp b/utils/v4l2-compliance/v4l2-test-io-config.cpp
> > index 9ade11e8..be885cb3 100644
> > --- a/utils/v4l2-compliance/v4l2-test-io-config.cpp
> > +++ b/utils/v4l2-compliance/v4l2-test-io-config.cpp
> > @@ -19,15 +19,15 @@
> >   */
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include "v4l2-compliance.h"
> >
> > diff --git a/utils/v4l2-compliance/v4l2-test-media.cpp b/utils/v4l2-compliance/v4l2-test-media.cpp
> > index bcd8a725..94c25932 100644
> > --- a/utils/v4l2-compliance/v4l2-test-media.cpp
> > +++ b/utils/v4l2-compliance/v4l2-test-media.cpp
> > @@ -19,19 +19,19 @@
> >   */
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <sys/sysmacros.h>
> >  #include <fcntl.h>
> >  #include <dirent.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> > -#include <assert.h>
> > +#include <cassert>
> >  #include <set>
> >  #include <fstream>
> >
> > diff --git a/utils/v4l2-compliance/v4l2-test-subdevs.cpp b/utils/v4l2-compliance/v4l2-test-subdevs.cpp
> > index 489639fb..54d3c430 100644
> > --- a/utils/v4l2-compliance/v4l2-test-subdevs.cpp
> > +++ b/utils/v4l2-compliance/v4l2-test-subdevs.cpp
> > @@ -19,17 +19,17 @@
> >   */
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> > -#include <assert.h>
> > +#include <cassert>
> >
> >  #include "v4l2-compliance.h"
> >
> > diff --git a/utils/v4l2-ctl/v4l2-ctl-common.cpp b/utils/v4l2-ctl/v4l2-ctl-common.cpp
> > index 0640a521..bf267432 100644
> > --- a/utils/v4l2-ctl/v4l2-ctl-common.cpp
> > +++ b/utils/v4l2-ctl/v4l2-ctl-common.cpp
> > @@ -1,18 +1,18 @@
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> >  #include <inttypes.h>
> >  #include <getopt.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <sys/sysmacros.h>
> >  #include <sys/time.h>
> >  #include <dirent.h>
> > -#include <math.h>
> > +#include <cmath>
> >  #include <linux/media.h>
> >
> >  #include "v4l2-ctl.h"
> > diff --git a/utils/v4l2-ctl/v4l2-ctl-edid.cpp b/utils/v4l2-ctl/v4l2-ctl-edid.cpp
> > index b13d8209..d028d248 100644
> > --- a/utils/v4l2-ctl/v4l2-ctl-edid.cpp
> > +++ b/utils/v4l2-ctl/v4l2-ctl-edid.cpp
> > @@ -1,12 +1,12 @@
> >  #include <cstring>
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> >  #include <inttypes.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >
> >  #include "v4l2-ctl.h"
> > diff --git a/utils/v4l2-ctl/v4l2-ctl-io.cpp b/utils/v4l2-ctl/v4l2-ctl-io.cpp
> > index 9e83c03a..379198b5 100644
> > --- a/utils/v4l2-ctl/v4l2-ctl-io.cpp
> > +++ b/utils/v4l2-ctl/v4l2-ctl-io.cpp
> > @@ -1,18 +1,18 @@
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <getopt.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <sys/time.h>
> >  #include <dirent.h>
> > -#include <math.h>
> > +#include <cmath>
> >
> >  #include "v4l2-ctl.h"
> >
> > diff --git a/utils/v4l2-ctl/v4l2-ctl-meta.cpp b/utils/v4l2-ctl/v4l2-ctl-meta.cpp
> > index 3e71a6eb..718be765 100644
> > --- a/utils/v4l2-ctl/v4l2-ctl-meta.cpp
> > +++ b/utils/v4l2-ctl/v4l2-ctl-meta.cpp
> > @@ -1,18 +1,18 @@
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <getopt.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <sys/time.h>
> >  #include <dirent.h>
> > -#include <math.h>
> > +#include <cmath>
> >
> >  #include "v4l2-ctl.h"
> >
> > diff --git a/utils/v4l2-ctl/v4l2-ctl-misc.cpp b/utils/v4l2-ctl/v4l2-ctl-misc.cpp
> > index deb481b4..5a89aa7e 100644
> > --- a/utils/v4l2-ctl/v4l2-ctl-misc.cpp
> > +++ b/utils/v4l2-ctl/v4l2-ctl-misc.cpp
> > @@ -1,18 +1,18 @@
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <getopt.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <sys/time.h>
> >  #include <dirent.h>
> > -#include <math.h>
> > +#include <cmath>
> >
> >  #include "v4l2-ctl.h"
> >
> > diff --git a/utils/v4l2-ctl/v4l2-ctl-modes.cpp b/utils/v4l2-ctl/v4l2-ctl-modes.cpp
> > index b311ce5d..e076be6e 100644
> > --- a/utils/v4l2-ctl/v4l2-ctl-modes.cpp
> > +++ b/utils/v4l2-ctl/v4l2-ctl-modes.cpp
> > @@ -6,8 +6,8 @@
> >   * reserved.
> >   */
> >
> > -#include <stdio.h>
> > -#include <stdbool.h>
> > +#include <cstdio>
> > +
> >  #include "v4l2-ctl.h"
> >
> >  static bool valid_params(int width, int height, int refresh_rate)
> > diff --git a/utils/v4l2-ctl/v4l2-ctl-overlay.cpp b/utils/v4l2-ctl/v4l2-ctl-overlay.cpp
> > index 16344a15..a16e10db 100644
> > --- a/utils/v4l2-ctl/v4l2-ctl-overlay.cpp
> > +++ b/utils/v4l2-ctl/v4l2-ctl-overlay.cpp
> > @@ -1,18 +1,18 @@
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <getopt.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <sys/time.h>
> >  #include <dirent.h>
> > -#include <math.h>
> > +#include <cmath>
> >
> >  #include <linux/fb.h>
> >  #include <vector>
> > diff --git a/utils/v4l2-ctl/v4l2-ctl-sdr.cpp b/utils/v4l2-ctl/v4l2-ctl-sdr.cpp
> > index 71a65913..67603285 100644
> > --- a/utils/v4l2-ctl/v4l2-ctl-sdr.cpp
> > +++ b/utils/v4l2-ctl/v4l2-ctl-sdr.cpp
> > @@ -1,18 +1,18 @@
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <getopt.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <sys/time.h>
> >  #include <dirent.h>
> > -#include <math.h>
> > +#include <cmath>
> >
> >  #include "v4l2-ctl.h"
> >
> > diff --git a/utils/v4l2-ctl/v4l2-ctl-selection.cpp b/utils/v4l2-ctl/v4l2-ctl-selection.cpp
> > index be62eb03..9f3e0397 100644
> > --- a/utils/v4l2-ctl/v4l2-ctl-selection.cpp
> > +++ b/utils/v4l2-ctl/v4l2-ctl-selection.cpp
> > @@ -1,18 +1,18 @@
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <getopt.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <sys/time.h>
> >  #include <dirent.h>
> > -#include <math.h>
> > +#include <cmath>
> >
> >  #include "v4l2-ctl.h"
> >
> > diff --git a/utils/v4l2-ctl/v4l2-ctl-stds.cpp b/utils/v4l2-ctl/v4l2-ctl-stds.cpp
> > index 8dd06c43..3eb67316 100644
> > --- a/utils/v4l2-ctl/v4l2-ctl-stds.cpp
> > +++ b/utils/v4l2-ctl/v4l2-ctl-stds.cpp
> > @@ -1,18 +1,18 @@
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <getopt.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <sys/time.h>
> >  #include <dirent.h>
> > -#include <math.h>
> > +#include <cmath>
> >
> >  #include "v4l2-ctl.h"
> >
> > diff --git a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
> > index 8578610d..fab8f36b 100644
> > --- a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
> > +++ b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
> > @@ -1,8 +1,8 @@
> >  #include <cstring>
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> >  #include <inttypes.h>
> >  #include <getopt.h>
> >  #include <sys/types.h>
> > @@ -11,13 +11,13 @@
> >  #include <netinet/in.h>
> >  #include <netdb.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <sys/time.h>
> >  #include <sys/mman.h>
> >  #include <dirent.h>
> > -#include <math.h>
> > +#include <cmath>
> >  #include <linux/media.h>
> >
> >  #include "compiler.h"
> > diff --git a/utils/v4l2-ctl/v4l2-ctl-subdev.cpp b/utils/v4l2-ctl/v4l2-ctl-subdev.cpp
> > index 9e17a58d..1bf35b1d 100644
> > --- a/utils/v4l2-ctl/v4l2-ctl-subdev.cpp
> > +++ b/utils/v4l2-ctl/v4l2-ctl-subdev.cpp
> > @@ -1,18 +1,18 @@
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <getopt.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <sys/time.h>
> >  #include <dirent.h>
> > -#include <math.h>
> > +#include <cmath>
> >
> >  #include "v4l2-ctl.h"
> >
> > diff --git a/utils/v4l2-ctl/v4l2-ctl-tuner.cpp b/utils/v4l2-ctl/v4l2-ctl-tuner.cpp
> > index 981b8765..54635998 100644
> > --- a/utils/v4l2-ctl/v4l2-ctl-tuner.cpp
> > +++ b/utils/v4l2-ctl/v4l2-ctl-tuner.cpp
> > @@ -1,14 +1,14 @@
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <getopt.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <sys/time.h>
> >  #include <dirent.h>
> > diff --git a/utils/v4l2-ctl/v4l2-ctl-vbi.cpp b/utils/v4l2-ctl/v4l2-ctl-vbi.cpp
> > index ee55012f..c09bc3e2 100644
> > --- a/utils/v4l2-ctl/v4l2-ctl-vbi.cpp
> > +++ b/utils/v4l2-ctl/v4l2-ctl-vbi.cpp
> > @@ -1,19 +1,19 @@
> >  #include <cstring>
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> >  #include <inttypes.h>
> >  #include <getopt.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <sys/time.h>
> >  #include <dirent.h>
> > -#include <math.h>
> > +#include <cmath>
> >
> >  #include "compiler.h"
> >  #include "v4l2-ctl.h"
> > diff --git a/utils/v4l2-ctl/v4l2-ctl-vidcap.cpp b/utils/v4l2-ctl/v4l2-ctl-vidcap.cpp
> > index 6e920c1d..68896248 100644
> > --- a/utils/v4l2-ctl/v4l2-ctl-vidcap.cpp
> > +++ b/utils/v4l2-ctl/v4l2-ctl-vidcap.cpp
> > @@ -1,18 +1,18 @@
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <getopt.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <sys/time.h>
> >  #include <dirent.h>
> > -#include <math.h>
> > +#include <cmath>
> >
> >  #include "v4l2-ctl.h"
> >
> > diff --git a/utils/v4l2-ctl/v4l2-ctl-vidout.cpp b/utils/v4l2-ctl/v4l2-ctl-vidout.cpp
> > index e3cb4bcb..39952eef 100644
> > --- a/utils/v4l2-ctl/v4l2-ctl-vidout.cpp
> > +++ b/utils/v4l2-ctl/v4l2-ctl-vidout.cpp
> > @@ -1,18 +1,18 @@
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <getopt.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <sys/time.h>
> >  #include <dirent.h>
> > -#include <math.h>
> > +#include <cmath>
> >
> >  #include "v4l2-ctl.h"
> >
> > diff --git a/utils/v4l2-ctl/v4l2-ctl.cpp b/utils/v4l2-ctl/v4l2-ctl.cpp
> > index e7b270cd..3d784bc2 100644
> > --- a/utils/v4l2-ctl/v4l2-ctl.cpp
> > +++ b/utils/v4l2-ctl/v4l2-ctl.cpp
> > @@ -21,22 +21,22 @@
> >   */
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > -#include <string.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> > +#include <cstring>
> >  #include <inttypes.h>
> >  #include <getopt.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <sys/epoll.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <sys/time.h>
> >  #include <sys/sysmacros.h>
> >  #include <dirent.h>
> > -#include <math.h>
> > +#include <cmath>
> >
> >  #include <linux/media.h>
> >
> > diff --git a/utils/v4l2-dbg/v4l2-dbg.cpp b/utils/v4l2-dbg/v4l2-dbg.cpp
> > index 06301ae0..765362f6 100644
> > --- a/utils/v4l2-dbg/v4l2-dbg.cpp
> > +++ b/utils/v4l2-dbg/v4l2-dbg.cpp
> > @@ -17,18 +17,18 @@
> >   */
> >
> >  #include <unistd.h>
> > -#include <stdlib.h>
> > -#include <stdio.h>
> > +#include <cstdlib>
> > +#include <cstdio>
> >  #include <inttypes.h>
> >  #include <getopt.h>
> >  #include <sys/types.h>
> >  #include <sys/stat.h>
> >  #include <fcntl.h>
> > -#include <ctype.h>
> > -#include <errno.h>
> > +#include <cctype>
> > +#include <cerrno>
> >  #include <sys/ioctl.h>
> >  #include <sys/time.h>
> > -#include <math.h>
> > +#include <cmath>
> >
> >  #ifdef ANDROID
> >  #include <android-config.h>
> >
>
diff mbox series

Patch

diff --git a/utils/cec-compliance/cec-compliance.cpp b/utils/cec-compliance/cec-compliance.cpp
index d0580579..60298846 100644
--- a/utils/cec-compliance/cec-compliance.cpp
+++ b/utils/cec-compliance/cec-compliance.cpp
@@ -4,17 +4,17 @@ 
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/time.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/wait.h>
 #include <sstream>
diff --git a/utils/cec-compliance/cec-test-adapter.cpp b/utils/cec-compliance/cec-test-adapter.cpp
index df7374df..b7a8159d 100644
--- a/utils/cec-compliance/cec-test-adapter.cpp
+++ b/utils/cec-compliance/cec-test-adapter.cpp
@@ -4,16 +4,16 @@ 
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/wait.h>
 #include <sstream>
diff --git a/utils/cec-compliance/cec-test-audio.cpp b/utils/cec-compliance/cec-test-audio.cpp
index d422a7da..edf528c9 100644
--- a/utils/cec-compliance/cec-test-audio.cpp
+++ b/utils/cec-compliance/cec-test-audio.cpp
@@ -4,15 +4,15 @@ 
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <config.h>
 
diff --git a/utils/cec-compliance/cec-test-fuzzing.cpp b/utils/cec-compliance/cec-test-fuzzing.cpp
index ce0bf12d..708a8ec3 100644
--- a/utils/cec-compliance/cec-test-fuzzing.cpp
+++ b/utils/cec-compliance/cec-test-fuzzing.cpp
@@ -4,15 +4,15 @@ 
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <config.h>
 #include <sstream>
diff --git a/utils/cec-compliance/cec-test-power.cpp b/utils/cec-compliance/cec-test-power.cpp
index 2758c36d..e35264aa 100644
--- a/utils/cec-compliance/cec-test-power.cpp
+++ b/utils/cec-compliance/cec-test-power.cpp
@@ -4,15 +4,15 @@ 
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <config.h>
 
diff --git a/utils/cec-compliance/cec-test.cpp b/utils/cec-compliance/cec-test.cpp
index a84f83d3..1a05c5ae 100644
--- a/utils/cec-compliance/cec-test.cpp
+++ b/utils/cec-compliance/cec-test.cpp
@@ -6,14 +6,14 @@ 
 #include <cstring>
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
+#include <cstdlib>
+#include <cstdio>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <config.h>
 #include <sstream>
diff --git a/utils/cec-ctl/cec-ctl.cpp b/utils/cec-ctl/cec-ctl.cpp
index 899b83b1..3c6c6f98 100644
--- a/utils/cec-ctl/cec-ctl.cpp
+++ b/utils/cec-ctl/cec-ctl.cpp
@@ -6,8 +6,8 @@ 
 #include <cstring>
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
+#include <cstdlib>
+#include <cstdio>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
@@ -15,10 +15,10 @@ 
 #include <sys/time.h>
 #include <dirent.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
-#include <stdarg.h>
+#include <cstdarg>
 #include <ctime>
 #include <cerrno>
 #include <string>
diff --git a/utils/cec-ctl/cec-pin.cpp b/utils/cec-ctl/cec-pin.cpp
index c09d6bbd..3ff4734f 100644
--- a/utils/cec-ctl/cec-pin.cpp
+++ b/utils/cec-ctl/cec-pin.cpp
@@ -4,19 +4,19 @@ 
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/time.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
-#include <stdarg.h>
+#include <cstdarg>
 #include <cerrno>
 #include <string>
 #include <vector>
diff --git a/utils/cec-follower/cec-follower.cpp b/utils/cec-follower/cec-follower.cpp
index 589426ec..c6e0a1d1 100644
--- a/utils/cec-follower/cec-follower.cpp
+++ b/utils/cec-follower/cec-follower.cpp
@@ -6,15 +6,15 @@ 
 #include <cstring>
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
+#include <cstdlib>
+#include <cstdio>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/wait.h>
 #include <sstream>
diff --git a/utils/cec-follower/cec-processing.cpp b/utils/cec-follower/cec-processing.cpp
index bc8c9c09..e2c5c8e2 100644
--- a/utils/cec-follower/cec-processing.cpp
+++ b/utils/cec-follower/cec-processing.cpp
@@ -4,16 +4,16 @@ 
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/time.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <config.h>
 
diff --git a/utils/cec-follower/cec-tuner.cpp b/utils/cec-follower/cec-tuner.cpp
index 4aecebce..7ac0decb 100644
--- a/utils/cec-follower/cec-tuner.cpp
+++ b/utils/cec-follower/cec-tuner.cpp
@@ -4,7 +4,7 @@ 
  */
 
 #include <sys/ioctl.h>
-#include <stdlib.h>
+#include <cstdlib>
 
 #include "cec-follower.h"
 #include "compiler.h"
diff --git a/utils/common/media-info.cpp b/utils/common/media-info.cpp
index 8aa12f34..d37c5acb 100644
--- a/utils/common/media-info.cpp
+++ b/utils/common/media-info.cpp
@@ -4,15 +4,15 @@ 
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <sys/sysmacros.h>
diff --git a/utils/common/v4l2-info.cpp b/utils/common/v4l2-info.cpp
index 0aac8504..28116fd3 100644
--- a/utils/common/v4l2-info.cpp
+++ b/utils/common/v4l2-info.cpp
@@ -4,15 +4,15 @@ 
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <sys/sysmacros.h>
diff --git a/utils/libcecutil/cec-info.cpp b/utils/libcecutil/cec-info.cpp
index f6e60918..ed244437 100644
--- a/utils/libcecutil/cec-info.cpp
+++ b/utils/libcecutil/cec-info.cpp
@@ -5,7 +5,7 @@ 
  * Copyright 2017 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
  */
 
-#include <stdio.h>
+#include <cstdio>
 #include <string>
 #include <unistd.h>
 #include <fcntl.h>
diff --git a/utils/libcecutil/cec-log.cpp b/utils/libcecutil/cec-log.cpp
index 0dcb4675..40028630 100644
--- a/utils/libcecutil/cec-log.cpp
+++ b/utils/libcecutil/cec-log.cpp
@@ -4,11 +4,11 @@ 
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
-#include <stdarg.h>
+#include <cstdarg>
 #include <string>
 #include <linux/cec-funcs.h>
 #include "cec-htng-funcs.h"
diff --git a/utils/libcecutil/cec-parse.cpp b/utils/libcecutil/cec-parse.cpp
index 8c869fec..024b6285 100644
--- a/utils/libcecutil/cec-parse.cpp
+++ b/utils/libcecutil/cec-parse.cpp
@@ -4,8 +4,8 @@ 
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
+#include <cstdlib>
+#include <cstdio>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
@@ -13,10 +13,10 @@ 
 #include <sys/time.h>
 #include <dirent.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
-#include <stdarg.h>
+#include <cstdarg>
 #include <cstring>
 #include <ctime>
 #include <cerrno>
diff --git a/utils/rds-ctl/rds-ctl.cpp b/utils/rds-ctl/rds-ctl.cpp
index 73fc7e3c..fbc4d310 100644
--- a/utils/rds-ctl/rds-ctl.cpp
+++ b/utils/rds-ctl/rds-ctl.cpp
@@ -8,21 +8,21 @@ 
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <wchar.h>
-#include <locale.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
+#include <cwchar>
+#include <clocale>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <fcntl.h>
-#include <errno.h>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <dirent.h>
 #include <config.h>
-#include <signal.h>
+#include <csignal>
 
 #include <linux/videodev2.h>
 #include <libv4l2rds.h>
diff --git a/utils/v4l2-compliance/v4l2-compliance.cpp b/utils/v4l2-compliance/v4l2-compliance.cpp
index 549e37f7..49606975 100644
--- a/utils/v4l2-compliance/v4l2-compliance.cpp
+++ b/utils/v4l2-compliance/v4l2-compliance.cpp
@@ -21,22 +21,22 @@ 
 #include <cstring>
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
+#include <cstdlib>
+#include <cstdio>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <sys/sysmacros.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 #include <sys/utsname.h>
-#include <signal.h>
+#include <csignal>
 #include <vector>
 
 #include "v4l2-compliance.h"
diff --git a/utils/v4l2-compliance/v4l2-test-buffers.cpp b/utils/v4l2-compliance/v4l2-test-buffers.cpp
index fc49fff6..e2df126d 100644
--- a/utils/v4l2-compliance/v4l2-test-buffers.cpp
+++ b/utils/v4l2-compliance/v4l2-test-buffers.cpp
@@ -19,9 +19,9 @@ 
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -29,8 +29,8 @@ 
 #include <sys/wait.h>
 #include <sys/epoll.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <poll.h>
 #include <sys/ioctl.h>
 #include <netinet/in.h>
diff --git a/utils/v4l2-compliance/v4l2-test-codecs.cpp b/utils/v4l2-compliance/v4l2-test-codecs.cpp
index 3fd44c8b..377574ec 100644
--- a/utils/v4l2-compliance/v4l2-test-codecs.cpp
+++ b/utils/v4l2-compliance/v4l2-test-codecs.cpp
@@ -19,17 +19,17 @@ 
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
-#include <assert.h>
+#include <cassert>
 #include "v4l2-compliance.h"
 
 int testEncoder(struct node *node)
diff --git a/utils/v4l2-compliance/v4l2-test-colors.cpp b/utils/v4l2-compliance/v4l2-test-colors.cpp
index 09d29a3e..6996877d 100644
--- a/utils/v4l2-compliance/v4l2-test-colors.cpp
+++ b/utils/v4l2-compliance/v4l2-test-colors.cpp
@@ -15,19 +15,19 @@ 
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
-#include <math.h>
+#include <cmath>
 
 #include "compiler.h"
 #include "v4l2-compliance.h"
diff --git a/utils/v4l2-compliance/v4l2-test-controls.cpp b/utils/v4l2-compliance/v4l2-test-controls.cpp
index d81dddb2..c3c27119 100644
--- a/utils/v4l2-compliance/v4l2-test-controls.cpp
+++ b/utils/v4l2-compliance/v4l2-test-controls.cpp
@@ -19,15 +19,15 @@ 
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <vector>
 
diff --git a/utils/v4l2-compliance/v4l2-test-debug.cpp b/utils/v4l2-compliance/v4l2-test-debug.cpp
index 3f43e661..206b4b82 100644
--- a/utils/v4l2-compliance/v4l2-test-debug.cpp
+++ b/utils/v4l2-compliance/v4l2-test-debug.cpp
@@ -19,19 +19,19 @@ 
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
-#include <math.h>
+#include <cmath>
 #include "v4l2-compliance.h"
 
 int testRegister(struct node *node)
diff --git a/utils/v4l2-compliance/v4l2-test-formats.cpp b/utils/v4l2-compliance/v4l2-test-formats.cpp
index e1b00f3c..7780442e 100644
--- a/utils/v4l2-compliance/v4l2-test-formats.cpp
+++ b/utils/v4l2-compliance/v4l2-test-formats.cpp
@@ -19,17 +19,17 @@ 
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
-#include <assert.h>
+#include <cassert>
 
 #include "compiler.h"
 #include "v4l2-compliance.h"
diff --git a/utils/v4l2-compliance/v4l2-test-input-output.cpp b/utils/v4l2-compliance/v4l2-test-input-output.cpp
index 80ecf75d..a7fe81d8 100644
--- a/utils/v4l2-compliance/v4l2-test-input-output.cpp
+++ b/utils/v4l2-compliance/v4l2-test-input-output.cpp
@@ -19,15 +19,15 @@ 
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include "v4l2-compliance.h"
 
diff --git a/utils/v4l2-compliance/v4l2-test-io-config.cpp b/utils/v4l2-compliance/v4l2-test-io-config.cpp
index 9ade11e8..be885cb3 100644
--- a/utils/v4l2-compliance/v4l2-test-io-config.cpp
+++ b/utils/v4l2-compliance/v4l2-test-io-config.cpp
@@ -19,15 +19,15 @@ 
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include "v4l2-compliance.h"
 
diff --git a/utils/v4l2-compliance/v4l2-test-media.cpp b/utils/v4l2-compliance/v4l2-test-media.cpp
index bcd8a725..94c25932 100644
--- a/utils/v4l2-compliance/v4l2-test-media.cpp
+++ b/utils/v4l2-compliance/v4l2-test-media.cpp
@@ -19,19 +19,19 @@ 
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/sysmacros.h>
 #include <fcntl.h>
 #include <dirent.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
-#include <assert.h>
+#include <cassert>
 #include <set>
 #include <fstream>
 
diff --git a/utils/v4l2-compliance/v4l2-test-subdevs.cpp b/utils/v4l2-compliance/v4l2-test-subdevs.cpp
index 489639fb..54d3c430 100644
--- a/utils/v4l2-compliance/v4l2-test-subdevs.cpp
+++ b/utils/v4l2-compliance/v4l2-test-subdevs.cpp
@@ -19,17 +19,17 @@ 
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
-#include <assert.h>
+#include <cassert>
 
 #include "v4l2-compliance.h"
 
diff --git a/utils/v4l2-ctl/v4l2-ctl-common.cpp b/utils/v4l2-ctl/v4l2-ctl-common.cpp
index 0640a521..bf267432 100644
--- a/utils/v4l2-ctl/v4l2-ctl-common.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-common.cpp
@@ -1,18 +1,18 @@ 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
+#include <cstdlib>
+#include <cstdio>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/sysmacros.h>
 #include <sys/time.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 #include <linux/media.h>
 
 #include "v4l2-ctl.h"
diff --git a/utils/v4l2-ctl/v4l2-ctl-edid.cpp b/utils/v4l2-ctl/v4l2-ctl-edid.cpp
index b13d8209..d028d248 100644
--- a/utils/v4l2-ctl/v4l2-ctl-edid.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-edid.cpp
@@ -1,12 +1,12 @@ 
 #include <cstring>
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
+#include <cstdlib>
+#include <cstdio>
 #include <inttypes.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 
 #include "v4l2-ctl.h"
diff --git a/utils/v4l2-ctl/v4l2-ctl-io.cpp b/utils/v4l2-ctl/v4l2-ctl-io.cpp
index 9e83c03a..379198b5 100644
--- a/utils/v4l2-ctl/v4l2-ctl-io.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-io.cpp
@@ -1,18 +1,18 @@ 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 
 #include "v4l2-ctl.h"
 
diff --git a/utils/v4l2-ctl/v4l2-ctl-meta.cpp b/utils/v4l2-ctl/v4l2-ctl-meta.cpp
index 3e71a6eb..718be765 100644
--- a/utils/v4l2-ctl/v4l2-ctl-meta.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-meta.cpp
@@ -1,18 +1,18 @@ 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 
 #include "v4l2-ctl.h"
 
diff --git a/utils/v4l2-ctl/v4l2-ctl-misc.cpp b/utils/v4l2-ctl/v4l2-ctl-misc.cpp
index deb481b4..5a89aa7e 100644
--- a/utils/v4l2-ctl/v4l2-ctl-misc.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-misc.cpp
@@ -1,18 +1,18 @@ 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 
 #include "v4l2-ctl.h"
 
diff --git a/utils/v4l2-ctl/v4l2-ctl-modes.cpp b/utils/v4l2-ctl/v4l2-ctl-modes.cpp
index b311ce5d..e076be6e 100644
--- a/utils/v4l2-ctl/v4l2-ctl-modes.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-modes.cpp
@@ -6,8 +6,8 @@ 
  * reserved.
  */
 
-#include <stdio.h>
-#include <stdbool.h>
+#include <cstdio>
+
 #include "v4l2-ctl.h"
 
 static bool valid_params(int width, int height, int refresh_rate)
diff --git a/utils/v4l2-ctl/v4l2-ctl-overlay.cpp b/utils/v4l2-ctl/v4l2-ctl-overlay.cpp
index 16344a15..a16e10db 100644
--- a/utils/v4l2-ctl/v4l2-ctl-overlay.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-overlay.cpp
@@ -1,18 +1,18 @@ 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 
 #include <linux/fb.h>
 #include <vector>
diff --git a/utils/v4l2-ctl/v4l2-ctl-sdr.cpp b/utils/v4l2-ctl/v4l2-ctl-sdr.cpp
index 71a65913..67603285 100644
--- a/utils/v4l2-ctl/v4l2-ctl-sdr.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-sdr.cpp
@@ -1,18 +1,18 @@ 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 
 #include "v4l2-ctl.h"
 
diff --git a/utils/v4l2-ctl/v4l2-ctl-selection.cpp b/utils/v4l2-ctl/v4l2-ctl-selection.cpp
index be62eb03..9f3e0397 100644
--- a/utils/v4l2-ctl/v4l2-ctl-selection.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-selection.cpp
@@ -1,18 +1,18 @@ 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 
 #include "v4l2-ctl.h"
 
diff --git a/utils/v4l2-ctl/v4l2-ctl-stds.cpp b/utils/v4l2-ctl/v4l2-ctl-stds.cpp
index 8dd06c43..3eb67316 100644
--- a/utils/v4l2-ctl/v4l2-ctl-stds.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-stds.cpp
@@ -1,18 +1,18 @@ 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 
 #include "v4l2-ctl.h"
 
diff --git a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
index 8578610d..fab8f36b 100644
--- a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
@@ -1,8 +1,8 @@ 
 #include <cstring>
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
+#include <cstdlib>
+#include <cstdio>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
@@ -11,13 +11,13 @@ 
 #include <netinet/in.h>
 #include <netdb.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <sys/mman.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 #include <linux/media.h>
 
 #include "compiler.h"
diff --git a/utils/v4l2-ctl/v4l2-ctl-subdev.cpp b/utils/v4l2-ctl/v4l2-ctl-subdev.cpp
index 9e17a58d..1bf35b1d 100644
--- a/utils/v4l2-ctl/v4l2-ctl-subdev.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-subdev.cpp
@@ -1,18 +1,18 @@ 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 
 #include "v4l2-ctl.h"
 
diff --git a/utils/v4l2-ctl/v4l2-ctl-tuner.cpp b/utils/v4l2-ctl/v4l2-ctl-tuner.cpp
index 981b8765..54635998 100644
--- a/utils/v4l2-ctl/v4l2-ctl-tuner.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-tuner.cpp
@@ -1,14 +1,14 @@ 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <dirent.h>
diff --git a/utils/v4l2-ctl/v4l2-ctl-vbi.cpp b/utils/v4l2-ctl/v4l2-ctl-vbi.cpp
index ee55012f..c09bc3e2 100644
--- a/utils/v4l2-ctl/v4l2-ctl-vbi.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-vbi.cpp
@@ -1,19 +1,19 @@ 
 #include <cstring>
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
+#include <cstdlib>
+#include <cstdio>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 
 #include "compiler.h"
 #include "v4l2-ctl.h"
diff --git a/utils/v4l2-ctl/v4l2-ctl-vidcap.cpp b/utils/v4l2-ctl/v4l2-ctl-vidcap.cpp
index 6e920c1d..68896248 100644
--- a/utils/v4l2-ctl/v4l2-ctl-vidcap.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-vidcap.cpp
@@ -1,18 +1,18 @@ 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 
 #include "v4l2-ctl.h"
 
diff --git a/utils/v4l2-ctl/v4l2-ctl-vidout.cpp b/utils/v4l2-ctl/v4l2-ctl-vidout.cpp
index e3cb4bcb..39952eef 100644
--- a/utils/v4l2-ctl/v4l2-ctl-vidout.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-vidout.cpp
@@ -1,18 +1,18 @@ 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 
 #include "v4l2-ctl.h"
 
diff --git a/utils/v4l2-ctl/v4l2-ctl.cpp b/utils/v4l2-ctl/v4l2-ctl.cpp
index e7b270cd..3d784bc2 100644
--- a/utils/v4l2-ctl/v4l2-ctl.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl.cpp
@@ -21,22 +21,22 @@ 
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/epoll.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <sys/sysmacros.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 
 #include <linux/media.h>
 
diff --git a/utils/v4l2-dbg/v4l2-dbg.cpp b/utils/v4l2-dbg/v4l2-dbg.cpp
index 06301ae0..765362f6 100644
--- a/utils/v4l2-dbg/v4l2-dbg.cpp
+++ b/utils/v4l2-dbg/v4l2-dbg.cpp
@@ -17,18 +17,18 @@ 
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
+#include <cstdlib>
+#include <cstdio>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
-#include <math.h>
+#include <cmath>
 
 #ifdef ANDROID
 #include <android-config.h>