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sortix--sortix/libc/wchar/wcsncasecmp.cpp
2014-12-02 18:23:42 +01:00

43 lines
1.4 KiB
C++

/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2014.
This file is part of the Sortix C Library.
The Sortix C Library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at your
option) any later version.
The Sortix C Library 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 Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
wchar/wcsncasecmp.cpp
Compares a prefix of two strings ignoring case.
*******************************************************************************/
#include <wchar.h>
#include <wctype.h>
extern "C"
int wcsncasecmp(const wchar_t* a, const wchar_t* b, size_t max_count)
{
for ( size_t i = 0; i < max_count; i++ )
{
wint_t ac = towlower((wint_t) a[i]);
wint_t bc = towlower((wint_t) b[i]);
if ( ac == L'\0' && bc == L'\0' )
return 0;
if ( ac < bc )
return -1;
if ( ac > bc )
return 1;
}
return 0;
}