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#include <mcheck.h>
#include <stdio.h>
#ifndef CHAR_T
# define CHAR_T char
# define W(o) o
# define OPEN_MEMSTREAM open_memstream
#endif
#define S(s) S1 (s)
#define S1(s) #s
static void
mcheck_abort (enum mcheck_status ev)
{
printf ("mecheck failed with status %d\n", (int) ev);
exit (1);
}
static int
do_test (void)
{
mcheck_pedantic (mcheck_abort);
CHAR_T *buf = (CHAR_T *) 1l;
size_t len = 12345;
FILE *fp = OPEN_MEMSTREAM (&buf, &len);
if (fp == NULL)
{
printf ("%s failed\n", S(OPEN_MEMSTREAM));
return 1;
}
for (int outer = 0; outer < 800; ++outer)
{
for (int inner = 0; inner < 100; ++inner)
if (fputc (W('a') + (outer * 100 + inner) % 26, fp) == EOF)
{
printf ("fputc at %d:%d failed\n", outer, inner);
return 1;
}
if (fflush (fp) != 0)
{
puts ("fflush failed");
return 1;
}
if (len != (outer + 1) * 100)
{
printf ("string in round %d not %d bytest long\n",
outer + 1, (outer + 1) * 100);
return 1;
}
if (buf == (CHAR_T *) 1l)
{
printf ("round %d: buf not updated\n", outer + 1);
return 1;
}
for (int inner = 0; inner < (outer + 1) * 100; ++inner)
if (buf[inner] != W('a') + inner % 26)
{
printf ("round %d: buf[%d] != '%c'\n", outer + 1, inner,
(char) (W('a') + inner % 26));
return 1;
}
}
buf = (CHAR_T *) 1l;
len = 12345;
if (fclose (fp) != 0)
{
puts ("fclose failed");
return 1;
}
if (len != 800 * 100)
{
puts ("string after close not 80000 bytes long");
return 1;
}
if (buf == (CHAR_T *) 1l)
{
puts ("buf not updated");
return 1;
}
for (int inner = 0; inner < 800 * 100; ++inner)
if (buf[inner] != W('a') + inner % 26)
{
printf ("after close: buf[%d] != %c\n", inner,
(char) (W('a') + inner % 26));
return 1;
}
free (buf);
return 0;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
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