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/* Test of snprintf() function.
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Copyright (C) 2007-2017 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 <http://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 (snprintf, int, (char *, size_t, char const *, ...));
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#include <string.h>
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#include "macros.h"
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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 size;
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int retval;
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retval = snprintf (NULL, 0, "%d", 12345);
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ASSERT (retval == 5);
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for (size = 0; size <= 8; size++)
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{
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memcpy (buf, "DEADBEEF", 8);
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retval = 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 (memcmp (buf, "12345", size - 1) == 0);
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ASSERT (buf[size - 1] == '\0' || buf[size - 1] == '0' + size);
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}
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#if !CHECK_SNPRINTF_POSIX
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if (size > 0)
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#endif
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ASSERT (memcmp (buf + size, &"DEADBEEF"[size], 8 - size) == 0);
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}
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else
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{
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ASSERT (memcmp (buf, "12345\0EF", 8) == 0);
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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 = snprintf (result, sizeof (result), "%2$d %1$d", 33, 55);
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ASSERT (strcmp (result, "55 33") == 0);
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ASSERT (retval == strlen (result));
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}
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return 0;
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}
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