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glibc/libio/tst-memstream2.c
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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 TIMEOUT 100 | |
#define TEST_FUNCTION do_test () | |
#include "../test-skeleton.c" |