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