[thirdparty/glibc.git] / string / bug-strspn1.c

#undef __USE_STRING_INLINES
#define __USE_STRING_INLINES
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <libc-diag.h>

int
main (void)
{
  const char *a = "abc";
  const char *b = a;

  DIAG_PUSH_NEEDS_COMMENT;
  /* GCC 9 correctly warns that this call to strspn is useless.  That
     is deliberate; this test is verifying that a side effect in an
     argument still occurs when the call itself is useless and could
     be optimized to return a constant.  */
  DIAG_IGNORE_NEEDS_COMMENT (9, "-Wunused-value");
  strspn (b++, "");
  DIAG_POP_NEEDS_COMMENT;
  if (b != a + 1)
    return 1;

  return 0;
}
Commit	Line	Data
02fb3d17	1	#undef __USE_STRING_INLINES
9c3b1ceb UD	2	#define __USE_STRING_INLINES
	3	#include <string.h>
	4	#include <stdlib.h>
	5	#include <stdio.h>
1760daad	6	#include <libc-diag.h>
9c3b1ceb UD	7
	8	int
	9	main (void)
	10	{
	11	const char *a = "abc";
	12	const char *b = a;
	13
1760daad JM	14	DIAG_PUSH_NEEDS_COMMENT;
	15	/* GCC 9 correctly warns that this call to strspn is useless. That
	16	is deliberate; this test is verifying that a side effect in an
	17	argument still occurs when the call itself is useless and could
	18	be optimized to return a constant. */
	19	DIAG_IGNORE_NEEDS_COMMENT (9, "-Wunused-value");
9c3b1ceb	20	strspn (b++, "");
1760daad	21	DIAG_POP_NEEDS_COMMENT;
9c3b1ceb	22	if (b != a + 1)
bf4de8f3	23	return 1;
9c3b1ceb	24
bf4de8f3	25	return 0;
9c3b1ceb	26	}