LCOV - code coverage report
Current view: top level - gl - c-strcasecmp.c (source / functions) Hit Total Coverage
Test: GNU SASL Lines: 12 13 92.3 %
Date: 2010-09-27 Functions: 1 1 100.0 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 5 6 83.3 %

           Branch data     Line data    Source code
       1                 :            : /* c-strcasecmp.c -- case insensitive string comparator in C locale
       2                 :            :    Copyright (C) 1998-1999, 2005-2006, 2009-2010 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, or (at your option)
       7                 :            :    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, write to the Free Software Foundation,
      16                 :            :    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
      17                 :            : 
      18                 :            : #include <config.h>
      19                 :            : 
      20                 :            : /* Specification.  */
      21                 :            : #include "c-strcase.h"
      22                 :            : 
      23                 :            : #include <limits.h>
      24                 :            : 
      25                 :            : #include "c-ctype.h"
      26                 :            : 
      27                 :            : int
      28                 :         16 : c_strcasecmp (const char *s1, const char *s2)
      29                 :            : {
      30                 :         16 :   register const unsigned char *p1 = (const unsigned char *) s1;
      31                 :         16 :   register const unsigned char *p2 = (const unsigned char *) s2;
      32                 :            :   unsigned char c1, c2;
      33                 :            : 
      34         [ -  + ]:         16 :   if (p1 == p2)
      35                 :          0 :     return 0;
      36                 :            : 
      37                 :            :   do
      38                 :            :     {
      39                 :         60 :       c1 = c_tolower (*p1);
      40                 :         60 :       c2 = c_tolower (*p2);
      41                 :            : 
      42         [ +  + ]:         60 :       if (c1 == '\0')
      43                 :          3 :         break;
      44                 :            : 
      45                 :         57 :       ++p1;
      46                 :         57 :       ++p2;
      47                 :            :     }
      48         [ +  + ]:         57 :   while (c1 == c2);
      49                 :            : 
      50                 :            :   if (UCHAR_MAX <= INT_MAX)
      51                 :         16 :     return c1 - c2;
      52                 :            :   else
      53                 :            :     /* On machines where 'char' and 'int' are types of the same size, the
      54                 :            :        difference of two 'unsigned char' values - including the sign bit -
      55                 :            :        doesn't fit in an 'int'.  */
      56                 :            :     return (c1 > c2 ? 1 : c1 < c2 ? -1 : 0);
      57                 :            : }

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