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/* BZ #5424 */
#include <stdio.h>
#include <errno.h>
#include <libc-diag.h>
/* INT_MAX + 1 */
#define N 2147483648
/* (INT_MAX / 2) + 2 */
#define N2 1073741825
/* INT_MAX - 3 */
#define N3 2147483644
#define STRINGIFY(S) #S
#define MAKE_STR(S) STRINGIFY(S)
#define SN MAKE_STR(N)
#define SN2 MAKE_STR(N2)
#define SN3 MAKE_STR(N3)
static int
do_test (void)
{
int ret;
FILE *fp = fopen ("/dev/null", "w");
if (fp == NULL)
{
puts ("cannot open /dev/null");
return 1;
}
/* GCC 9 warns about output of more than INT_MAX characters; this is
deliberately tested here. */
DIAG_PUSH_NEEDS_COMMENT;
#if __GNUC_PREREQ (7, 0)
DIAG_IGNORE_NEEDS_COMMENT (9, "-Wformat-overflow=");
#endif
ret = fprintf (fp, "%" SN "d", 1);
DIAG_POP_NEEDS_COMMENT;
printf ("ret = %d\n", ret);
if (ret != -1 || errno != EOVERFLOW)
return 1;
/* GCC 9 warns about output of more than INT_MAX characters; this is
deliberately tested here. */
DIAG_PUSH_NEEDS_COMMENT;
#if __GNUC_PREREQ (7, 0)
DIAG_IGNORE_NEEDS_COMMENT (9, "-Wformat-overflow=");
#endif
ret = fprintf (fp, "%." SN "d", 1);
DIAG_POP_NEEDS_COMMENT;
printf ("ret = %d\n", ret);
if (ret != -1 || errno != EOVERFLOW)
return 1;
ret = fprintf (fp, "%." SN3 "d", 1);
printf ("ret = %d\n", ret);
if (ret != -1 || errno != EOVERFLOW)
return 1;
/* GCC 9 warns about output of more than INT_MAX characters; this is
deliberately tested here. */
DIAG_PUSH_NEEDS_COMMENT;
#if __GNUC_PREREQ (7, 0)
DIAG_IGNORE_NEEDS_COMMENT (9, "-Wformat-overflow=");
#endif
ret = fprintf (fp, "%" SN2 "d%" SN2 "d", 1, 1);
DIAG_POP_NEEDS_COMMENT;
printf ("ret = %d\n", ret);
return ret != -1 || errno != EOVERFLOW;
}
#define TIMEOUT 60
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
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