LCOV - code coverage report
Current view: top level - gltests - test-snprintf.c (source / functions) Hit Total Coverage
Test: GNU SASL Lines: 18 18 100.0 %
Date: 2012-05-28 Functions: 1 1 100.0 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 16 26 61.5 %

           Branch data     Line data    Source code
       1                 :            : /* Test of snprintf() function.
       2                 :            :    Copyright (C) 2007-2012 Free Software Foundation, Inc.
       3                 :            : 
       4                 :            :    This program is free software: you can redistribute it and/or modify
       5                 :            :    it under the terms of the GNU General Public License as published by
       6                 :            :    the Free Software Foundation; either version 3 of the License, or
       7                 :            :    (at your option) any later version.
       8                 :            : 
       9                 :            :    This program is distributed in the hope that it will be useful,
      10                 :            :    but WITHOUT ANY WARRANTY; without even the implied warranty of
      11                 :            :    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      12                 :            :    GNU General Public License for more details.
      13                 :            : 
      14                 :            :    You should have received a copy of the GNU General Public License
      15                 :            :    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
      16                 :            : 
      17                 :            : /* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
      18                 :            : 
      19                 :            : #include <config.h>
      20                 :            : 
      21                 :            : #include <stdio.h>
      22                 :            : 
      23                 :            : #include "signature.h"
      24                 :            : SIGNATURE_CHECK (snprintf, int, (char *, size_t, char const *, ...));
      25                 :            : 
      26                 :            : #include <string.h>
      27                 :            : 
      28                 :            : #include "macros.h"
      29                 :            : 
      30                 :            : int
      31                 :          1 : main (int argc, char *argv[])
      32                 :            : {
      33                 :            :   char buf[8];
      34                 :            :   int size;
      35                 :            :   int retval;
      36                 :            : 
      37                 :          1 :   retval = snprintf (NULL, 0, "%d", 12345);
      38         [ -  + ]:          1 :   ASSERT (retval == 5);
      39                 :            : 
      40         [ +  + ]:         10 :   for (size = 0; size <= 8; size++)
      41                 :            :     {
      42                 :          9 :       memcpy (buf, "DEADBEEF", 8);
      43                 :          9 :       retval = snprintf (buf, size, "%d", 12345);
      44         [ -  + ]:          9 :       ASSERT (retval == 5);
      45         [ +  + ]:          9 :       if (size < 6)
      46                 :            :         {
      47         [ +  + ]:          6 :           if (size > 0)
      48                 :            :             {
      49         [ -  + ]:          5 :               ASSERT (memcmp (buf, "12345", size - 1) == 0);
      50 [ -  + ][ #  # ]:          5 :               ASSERT (buf[size - 1] == '\0' || buf[size - 1] == '0' + size);
      51                 :            :             }
      52                 :            : #if !CHECK_SNPRINTF_POSIX
      53         [ +  + ]:          6 :           if (size > 0)
      54                 :            : #endif
      55         [ -  + ]:          5 :             ASSERT (memcmp (buf + size, "DEADBEEF" + size, 8 - size) == 0);
      56                 :            :         }
      57                 :            :       else
      58                 :            :         {
      59         [ -  + ]:          3 :           ASSERT (memcmp (buf, "12345\0EF", 8) == 0);
      60                 :            :         }
      61                 :            :     }
      62                 :            : 
      63                 :            :   /* Test the support of the POSIX/XSI format strings with positions.  */
      64                 :            :   {
      65                 :            :     char result[100];
      66                 :          1 :     retval = snprintf (result, sizeof (result), "%2$d %1$d", 33, 55);
      67         [ -  + ]:          1 :     ASSERT (strcmp (result, "55 33") == 0);
      68         [ -  + ]:          1 :     ASSERT (retval == strlen (result));
      69                 :            :   }
      70                 :            : 
      71                 :          1 :   return 0;
      72                 :            : }

Generated by: LCOV version 1.9