| Message ID | 20191128204225.7002-8-luc.vanoostenryck@gmail.com (mailing list archive) |
|---|---|
| State | Mainlined, archived |
| Headers | show |
| Series | add support for '-std=c17' | expand |
On 28/11/2019 20:42, Luc Van Oostenryck wrote: > No real support is done here (or is needed) but the __STDC_VERSION__ > will return the correct value. > > Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com> > --- > lib.c | 13 +++++++++++++ > lib.h | 2 ++ > 2 files changed, 15 insertions(+) > > diff --git a/lib.c b/lib.c > index 7f7ca846b..8fddae450 100644 > --- a/lib.c > +++ b/lib.c > @@ -1079,6 +1079,15 @@ static char **handle_switch_s(const char *arg, char **next) > else if (!strcmp(arg, "gnu11")) > standard = STANDARD_GNU11; > > + else if (!strcmp(arg, "c17") || > + !strcmp(arg, "c18") || > + !strcmp(arg, "iso9899:2017") || > + !strcmp(arg, "iso9899:2018")) > + standard = STANDARD_C17; > + else if (!strcmp(arg, "gnu17") || > + !strcmp(arg, "gnu18")) > + standard = STANDARD_GNU17; > + Yes, I knew about C17, but out of nowhere I started hearing about C18! ;-) As far as I can tell, this is just C17, but because it crept into 2018 before final approval, come people are starting to call it C18. However, the __STDC_VERSION__ value is still 201710L, right? ATB, Ramsay Jones > else > die ("Unsupported C dialect"); > } > @@ -1421,6 +1430,10 @@ static void predefined_macros(void) > case STANDARD_GNU11: > predefine("__STDC_VERSION__", 1, "201112L"); > break; > + case STANDARD_C17: > + case STANDARD_GNU17: > + predefine("__STDC_VERSION__", 1, "201710L"); > + break; > } > if (!(standard & STANDARD_GNU) & (standard != STANDARD_NONE)) > predefine("__STRICT_ANSI__", 1, "1"); > diff --git a/lib.h b/lib.h > index 7958359c1..3e565c6fd 100644 > --- a/lib.h > +++ b/lib.h > @@ -235,6 +235,8 @@ enum standard { > STANDARD_GNU99 = STANDARD_C99 | STANDARD_GNU, > STANDARD_C11, > STANDARD_GNU11 = STANDARD_C11 | STANDARD_GNU, > + STANDARD_C17, > + STANDARD_GNU17 = STANDARD_C17 | STANDARD_GNU, > }; > extern enum standard standard; > >
On Sun, Dec 01, 2019 at 04:25:30PM +0000, Ramsay Jones wrote: > On 28/11/2019 20:42, Luc Van Oostenryck wrote: > > No real support is done here (or is needed) but the __STDC_VERSION__ > > will return the correct value. > > > > Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com> > > --- > > lib.c | 13 +++++++++++++ > > lib.h | 2 ++ > > 2 files changed, 15 insertions(+) > > > > diff --git a/lib.c b/lib.c > > index 7f7ca846b..8fddae450 100644 > > --- a/lib.c > > +++ b/lib.c > > @@ -1079,6 +1079,15 @@ static char **handle_switch_s(const char *arg, char **next) > > else if (!strcmp(arg, "gnu11")) > > standard = STANDARD_GNU11; > > > > + else if (!strcmp(arg, "c17") || > > + !strcmp(arg, "c18") || > > + !strcmp(arg, "iso9899:2017") || > > + !strcmp(arg, "iso9899:2018")) > > + standard = STANDARD_C17; > > + else if (!strcmp(arg, "gnu17") || > > + !strcmp(arg, "gnu18")) > > + standard = STANDARD_GNU17; > > + > > Yes, I knew about C17, but out of nowhere I started hearing > about C18! ;-) As far as I can tell, this is just C17, but > because it crept into 2018 before final approval, come people > are starting to call it C18. However, the __STDC_VERSION__ > value is still 201710L, right? Yes, exactly. It's essentially a 'bug-fix' only version, so nothing new and nothing controversial and so there is very few reasons to talk about it. I think that the final approval vote was still in 2017 but it was only published months later, in 2018. I think it's better known as C18 but I tend to call it C17 because of the __STDC_VERSION__. Best regards, -- Luc
diff --git a/lib.c b/lib.c index 7f7ca846b..8fddae450 100644 --- a/lib.c +++ b/lib.c @@ -1079,6 +1079,15 @@ static char **handle_switch_s(const char *arg, char **next) else if (!strcmp(arg, "gnu11")) standard = STANDARD_GNU11; + else if (!strcmp(arg, "c17") || + !strcmp(arg, "c18") || + !strcmp(arg, "iso9899:2017") || + !strcmp(arg, "iso9899:2018")) + standard = STANDARD_C17; + else if (!strcmp(arg, "gnu17") || + !strcmp(arg, "gnu18")) + standard = STANDARD_GNU17; + else die ("Unsupported C dialect"); } @@ -1421,6 +1430,10 @@ static void predefined_macros(void) case STANDARD_GNU11: predefine("__STDC_VERSION__", 1, "201112L"); break; + case STANDARD_C17: + case STANDARD_GNU17: + predefine("__STDC_VERSION__", 1, "201710L"); + break; } if (!(standard & STANDARD_GNU) & (standard != STANDARD_NONE)) predefine("__STRICT_ANSI__", 1, "1"); diff --git a/lib.h b/lib.h index 7958359c1..3e565c6fd 100644 --- a/lib.h +++ b/lib.h @@ -235,6 +235,8 @@ enum standard { STANDARD_GNU99 = STANDARD_C99 | STANDARD_GNU, STANDARD_C11, STANDARD_GNU11 = STANDARD_C11 | STANDARD_GNU, + STANDARD_C17, + STANDARD_GNU17 = STANDARD_C17 | STANDARD_GNU, }; extern enum standard standard;
No real support is done here (or is needed) but the __STDC_VERSION__ will return the correct value. Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com> --- lib.c | 13 +++++++++++++ lib.h | 2 ++ 2 files changed, 15 insertions(+)