glibc/stdio-common/bug19.c
Frédéric Bérat 29e25f6f13 tests: fix warn unused results
With fortification enabled, few function calls return result need to be
checked, has they get the __wur macro enabled.
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
2023-06-01 13:01:32 -04:00

64 lines
1.0 KiB
C

#include <assert.h>
#include <errno.h>
#include <stdio.h>
#ifndef CHAR
# define CHAR char
# define L(str) str
# define FPUTS fputs
# define FSCANF fscanf
#endif
static int
do_test (void)
{
FILE *fp = tmpfile ();
if (fp == NULL)
{
puts ("cannot open file");
return 1;
}
FPUTS (L("7-11"), fp);
rewind (fp);
printf("setting errno to EINTR\n");
errno = EINTR;
printf("checking sscanf\n");
int i, j, n;
int result = 0;
i = j = n = 0;
if (FSCANF (fp, L(" %i - %i %n"), &i, &j, &n) < 2)
{
printf ("FSCANF couldn't read all parameters %d\n", errno);
result = 1;
}
printf ("found %i-%i (length=%i)\n", i, j, n);
if (i != 7)
{
printf ("i is %d, expected 7\n", i);
result = 1;
}
if (j != 11)
{
printf ("j is %d, expected 11\n", j);
result = 1;
}
if (n != 4)
{
printf ("n is %d, expected 4\n", j);
result = 1;
}
return result;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"