glibc/stdio-common/tst-put-error.c

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#include <errno.h>
#include <error.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
static int
do_test (void)
{
char tmpl[] = "/tmp/tst-put-error.XXXXXX";
int fd = mkstemp (tmpl);
if (fd == -1)
error (EXIT_FAILURE, errno, "cannot create temporary file");
FILE *fp = fdopen (fd, "w");
if (fp == NULL)
error (EXIT_FAILURE, errno, "fdopen");
setlinebuf (fp);
close (fd);
unlink ("aaa");
int n = fprintf (fp, "hello world\n");
printf ("fprintf = %d\n", n);
if (n >= 0)
error (EXIT_FAILURE, 0, "first fprintf succeeded");
n = fprintf (fp, "hello world\n");
printf ("fprintf = %d\n", n);
if (n >= 0)
error (EXIT_FAILURE, 0, "second fprintf succeeded");
return 0;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"