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#include <assert.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
static int
do_test (void)
{
int result = 0;
char buf[100];
FILE *fp = fmemopen (buf, sizeof (buf), "w");
if (fp == NULL)
{
puts ("fmemopen failed");
return 0;
}
static const char str[] = "hello world";
#define nstr (sizeof (str) - 1)
fputs (str, fp);
off_t o = ftello (fp);
if (o != nstr)
{
printf ("first ftello returned %jd, expected %zu\n",
(intmax_t) o, nstr);
result = 1;
}
rewind (fp);
o = ftello (fp);
if (o != 0)
{
printf ("second ftello returned %jd, expected 0\n", (intmax_t) o);
result = 1;
}
if (fseeko (fp, 0, SEEK_END) != 0)
{
puts ("fseeko failed");
return 1;
}
o = ftello (fp);
if (o != nstr)
{
printf ("third ftello returned %jd, expected %zu\n",
(intmax_t) o, nstr);
result = 1;
}
rewind (fp);
static const char str2[] = "just hello";
#define nstr2 (sizeof (str2) - 1)
assert (nstr2 < nstr);
fputs (str2, fp);
o = ftello (fp);
if (o != nstr2)
{
printf ("fourth ftello returned %jd, expected %zu\n",
(intmax_t) o, nstr2);
result = 1;
}
fclose (fp);
static const char str3[] = "just hellod";
if (strcmp (buf, str3) != 0)
{
printf ("final string is \"%s\", expected \"%s\"\n",
buf, str3);
result = 1;
}
return result;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
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