@@ -1,8 +1,150 @@
-typedef int (*fn_t)(int x, int y);
+extern int ival;
+extern int *ipval;
+extern int array[3];
+extern int matrix[3][3];
+extern int fun(int);
-static int run(fn_t fn, int x, int y)
+// via an argument
+void arg(int a, int *p, int (*fb)(unsigned char), int (*fi)(int), int (*fl)(long), int (*fv)(void), int (*fip)(int *), int (*fim)(int (*)[3]), int (*fvp)(void *), int (*ffp)(int (*)(int)));
+void arg(int a, int *p, int (*fb)(unsigned char), int (*fi)(int), int (*fl)(long), int (*fv)(void), int (*fip)(int *), int (*fim)(int (*)[3]), int (*fvp)(void *), int (*ffp)(int (*)(int)))
{
- return fn(x, y);
+ fv();
+
+ fb(a);
+ fi(a);
+ fl(a);
+ fb(123);
+ fi(123);
+ fl(123);
+ fb(123L);
+ fi(123L);
+ fl(123L);
+ fb(ival);
+ fi(ival);
+ fl(ival);
+
+ fip(p);
+ fip((void*)0);
+ fip(ipval);
+ fip(&ival);
+ fip(array);
+ fim(matrix);
+
+ fvp(p);
+ fvp((void*)0);
+ fvp(ipval);
+ fvp(&ival);
+ fvp(array);
+ fvp(matrix);
+
+ fvp(fun);
+ fvp(&fun);
+ ffp(fun);
+ ffp(&fun);
+}
+
+// a global
+extern int (*fb)(unsigned char);
+extern int (*fi)(int);
+extern int (*fl)(long);
+extern int (*fv)(void);
+extern int (*fip)(int *);
+extern int (*fim)(int (*)[3]);
+extern int (*fvp)(void *);
+extern int (*ffp)(int (*)(int));
+
+void glb(int a, int *p);
+void glb(int a, int *p)
+{
+ fv();
+
+ fb(a);
+ fi(a);
+ fl(a);
+ fb(123);
+ fi(123);
+ fl(123);
+ fb(123L);
+ fi(123L);
+ fl(123L);
+ fb(ival);
+ fi(ival);
+ fl(ival);
+
+ fip(p);
+ fip((void*)0);
+ fip(ipval);
+ fip(&ival);
+ fip(array);
+ fim(matrix);
+
+ fvp(p);
+ fvp((void*)0);
+ fvp(ipval);
+ fvp(&ival);
+ fvp(array);
+ fvp(matrix);
+
+ fvp(fun);
+ fvp(&fun);
+ ffp(fun);
+ ffp(&fun);
+}
+
+// via a struct member:
+// -> force to create a register containing the function pointer
+struct ops {
+ int (*fb)(unsigned char);
+ int (*fi)(int);
+ int (*fl)(long);
+ int (*fv)(void);
+ int (*fip)(int *);
+ int (*fim)(int (*)[3]);
+ int (*fvp)(void *);
+ int (*ffp)(int (*)(int));
+
+ int (*const cfi)(int); // for the fun of it
+};
+
+void ops(int a, int *p, struct ops *ops);
+void ops(int a, int *p, struct ops *ops)
+{
+ ops->fv();
+
+ ops->fb(a);
+ ops->fi(a);
+ ops->fl(a);
+ ops->fb(123);
+ ops->fi(123);
+ ops->fl(123);
+ ops->fb(123L);
+ ops->fi(123L);
+ ops->fl(123L);
+ ops->fb(ival);
+ ops->fi(ival);
+ ops->fl(ival);
+
+ ops->fip(p);
+ ops->fip((void*)0);
+ ops->fip(ipval);
+ ops->fip(&ival);
+ ops->fip(array);
+ ops->fim(matrix);
+
+ ops->fvp(p);
+ ops->fvp((void*)0);
+ ops->fvp(ipval);
+ ops->fvp(&ival);
+ ops->fvp(array);
+ ops->fvp(matrix);
+
+ ops->fvp(fun);
+ ops->fvp(&fun);
+ ops->ffp(fun);
+ ops->ffp(&fun);
+ ops->fvp(fi);
+
+ ops->cfi(42);
}
/*
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com> --- validation/backend/function-ptr.c | 148 +++++++++++++++++++++++++++++++++++++- 1 file changed, 145 insertions(+), 3 deletions(-)