Blame gnulib-tests/test-vasprintf.c

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/* Test of vasprintf() and asprintf() functions.
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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 (asprintf, int, (char **, char const *, ...));
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SIGNATURE_CHECK (vasprintf, int, (char **, char const *, va_list));
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#include <stdarg.h>
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#include <stdlib.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_asprintf (char **result, 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 = vasprintf (result, format, args);
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  va_end (args);
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  return ret;
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}
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static void
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test_vasprintf ()
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{
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  int repeat;
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  for (repeat = 0; repeat <= 8; repeat++)
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    {
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      char *result;
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      int retval = my_asprintf (&result, "%d", 12345);
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      ASSERT (retval == 5);
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      ASSERT (result != NULL);
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      ASSERT (strcmp (result, "12345") == 0);
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      free (result);
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    }
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  for (repeat = 0; repeat <= 8; repeat++)
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    {
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      char *result;
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      int retval = my_asprintf (&result, "%08lx", 12345UL);
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      ASSERT (retval == 8);
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      ASSERT (result != NULL);
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      ASSERT (strcmp (result, "00003039") == 0);
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      free (result);
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    }
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}
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static void
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test_asprintf ()
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{
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  int repeat;
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  for (repeat = 0; repeat <= 8; repeat++)
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    {
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      char *result;
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      int retval = asprintf (&result, "%d", 12345);
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      ASSERT (retval == 5);
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      ASSERT (result != NULL);
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      ASSERT (strcmp (result, "12345") == 0);
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      free (result);
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    }
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  for (repeat = 0; repeat <= 8; repeat++)
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    {
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      char *result;
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      int retval = asprintf (&result, "%08lx", 12345UL);
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      ASSERT (retval == 8);
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      ASSERT (result != NULL);
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      ASSERT (strcmp (result, "00003039") == 0);
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      free (result);
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    }
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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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  test_vasprintf ();
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  test_asprintf ();
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  return 0;
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}