kc3-lang/gnulib/tests/test-snprintf.c

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• Hash : 1602f0af
  Author :
  Date : 2012-01-01T10:04:58
  

  maint: update all copyright year number ranges
  
  Run "make update-copyright".
  

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• tests/test-snprintf.c

• /* Test of snprintf() function.
     Copyright (C) 2007-2012 Free Software Foundation, Inc.
  
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 3 of the License, or
     (at your option) any later version.
  
     This program 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 General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  
  /* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
  
  #include <config.h>
  
  #include <stdio.h>
  
  #include "signature.h"
  SIGNATURE_CHECK (snprintf, int, (char *, size_t, char const *, ...));
  
  #include <string.h>
  
  #include "macros.h"
  
  int
  main (int argc, char *argv[])
  {
    char buf[8];
    int size;
    int retval;
  
    retval = snprintf (NULL, 0, "%d", 12345);
    ASSERT (retval == 5);
  
    for (size = 0; size <= 8; size++)
      {
        memcpy (buf, "DEADBEEF", 8);
        retval = snprintf (buf, size, "%d", 12345);
        ASSERT (retval == 5);
        if (size < 6)
          {
            if (size > 0)
              {
                ASSERT (memcmp (buf, "12345", size - 1) == 0);
                ASSERT (buf[size - 1] == '\0' || buf[size - 1] == '0' + size);
              }
  #if !CHECK_SNPRINTF_POSIX
            if (size > 0)
  #endif
              ASSERT (memcmp (buf + size, "DEADBEEF" + size, 8 - size) == 0);
          }
        else
          {
            ASSERT (memcmp (buf, "12345\0EF", 8) == 0);
          }
      }
  
    /* Test the support of the POSIX/XSI format strings with positions.  */
    {
      char result[100];
      retval = snprintf (result, sizeof (result), "%2$d %1$d", 33, 55);
      ASSERT (strcmp (result, "55 33") == 0);
      ASSERT (retval == strlen (result));
    }
  
    return 0;
  }
  

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