mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-21 20:40:05 +00:00
78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
/* Test writing differently sized strings to a memstream.
|
|
Copyright (C) 2022-2024 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <support/check.h>
|
|
#include <support/support.h>
|
|
#include <support/xmemstream.h>
|
|
|
|
/* Returns a printable ASCII character based on INDEX. */
|
|
static inline char
|
|
char_from_index (unsigned int index)
|
|
{
|
|
return ' ' + (index % 95);
|
|
}
|
|
|
|
enum { result_size = 25000 };
|
|
|
|
static void
|
|
run_one_size (unsigned int chunk_size)
|
|
{
|
|
char *chunk = xmalloc (chunk_size + 1);
|
|
|
|
struct xmemstream mem;
|
|
xopen_memstream (&mem);
|
|
unsigned int written = 0;
|
|
for (unsigned int i = 0; i < result_size; )
|
|
{
|
|
unsigned int to_print = result_size - i;
|
|
if (to_print > chunk_size)
|
|
to_print = chunk_size;
|
|
for (unsigned int j = 0; j < to_print; ++j)
|
|
chunk[j] = char_from_index(i + j);
|
|
chunk[to_print] = '\0';
|
|
fprintf (mem.out, "%s", chunk); /* Needs -fno-builtin-fprintf. */
|
|
i += to_print;
|
|
written += strlen(chunk);
|
|
}
|
|
xfclose_memstream (&mem);
|
|
|
|
TEST_COMPARE (written, result_size);
|
|
TEST_COMPARE (mem.length, result_size);
|
|
TEST_COMPARE (strlen (mem.buffer), result_size);
|
|
|
|
for (unsigned int i = 0; i < result_size; ++i)
|
|
TEST_COMPARE (mem.buffer[i], char_from_index (i));
|
|
|
|
free (mem.buffer);
|
|
free (chunk);
|
|
}
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
for (unsigned int chunk_size = 1; chunk_size <= 30; ++ chunk_size)
|
|
run_one_size (chunk_size);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|