mirror of
https://https.git.savannah.gnu.org/git/gnulib.git
synced 2026-06-15 15:25:49 +00:00
Bruno Haible
b2a583ead5
Done through
sed -e 's/memcmp \([(][^()]*[)]\) == 0/memeq \1/g' \
-e 's/memcmp \([(][^()]*[(][^()]*[)][^()]*[)]\) == 0/memeq \1/g'
* tests/**/*.[hc]: Use memeq instead of memcmp ... == 0.
* modules/*-tests (Dependencies): Add memeq.
85 lines
2.2 KiB
C
85 lines
2.2 KiB
C
/* Test of vsnprintf() function.
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Copyright (C) 2007-2026 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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/* Written by Bruno Haible <bruno@clisp.org>, 2007. */
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#include <config.h>
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#include <stdio.h>
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#include "signature.h"
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SIGNATURE_CHECK (vsnprintf, int, (char *, size_t, char const *, va_list));
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#include <stdarg.h>
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#include <string.h>
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#include "macros.h"
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static int
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my_snprintf (char *buf, int size, const char *format, ...)
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{
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va_list args;
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int ret;
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va_start (args, format);
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ret = vsnprintf (buf, size, format, args);
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va_end (args);
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return ret;
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}
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int
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main (int argc, char *argv[])
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{
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char buf[8];
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int retval;
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retval = my_snprintf (NULL, 0, "%d", 12345);
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ASSERT (retval == 5);
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for (int size = 0; size <= 8; size++)
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{
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memcpy (buf, "DEADBEEF", 8);
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retval = my_snprintf (buf, size, "%d", 12345);
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ASSERT (retval == 5);
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if (size < 6)
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{
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if (size > 0)
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{
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ASSERT (memeq (buf, "12345", size - 1));
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ASSERT (buf[size - 1] == '\0' || buf[size - 1] == '0' + size);
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}
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#if !CHECK_VSNPRINTF_POSIX
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if (size > 0)
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#endif
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ASSERT (memeq (buf + size, &"DEADBEEF"[size], 8 - size));
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}
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else
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{
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ASSERT (memeq (buf, "12345\0EF", 8));
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}
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}
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/* Test the support of the POSIX/XSI format strings with positions. */
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{
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char result[100];
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retval = my_snprintf (result, sizeof (result), "%2$d %1$d", 33, 55);
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ASSERT (streq (result, "55 33"));
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ASSERT (retval == strlen (result));
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}
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return test_exit_status;
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}
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