Coverage Report

Created: 2025-03-06 06:58

/src/wget/lib/c-strncasecmp.c
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/* c-strncasecmp.c -- case insensitive string comparator in C locale
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   Copyright (C) 1998-1999, 2005-2006, 2009-2025 Free Software Foundation, Inc.
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   This file is free software: you can redistribute it and/or modify
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   it under the terms of the GNU Lesser General Public License as
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   published by the Free Software Foundation; either version 2.1 of the
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   License, or (at your option) any later version.
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   This file 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 Lesser General Public License for more details.
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   You should have received a copy of the GNU Lesser General Public License
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   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
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#include <config.h>
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/* Specification.  */
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#include "c-strcase.h"
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#include <limits.h>
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#include "c-ctype.h"
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int
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c_strncasecmp (const char *s1, const char *s2, size_t n)
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139k
{
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  register const unsigned char *p1 = (const unsigned char *) s1;
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  register const unsigned char *p2 = (const unsigned char *) s2;
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  unsigned char c1, c2;
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  if (p1 == p2 || n == 0)
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    return 0;
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  do
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    {
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      c1 = c_tolower (*p1);
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      c2 = c_tolower (*p2);
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      if (--n == 0 || c1 == '\0')
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        break;
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      ++p1;
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      ++p2;
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    }
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  while (c1 == c2);
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  if (UCHAR_MAX <= INT_MAX)
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    return c1 - c2;
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0
  else
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    /* On machines where 'char' and 'int' are types of the same size, the
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       difference of two 'unsigned char' values - including the sign bit -
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       doesn't fit in an 'int'.  */
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0
    return _GL_CMP (c1, c2);
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139k
}