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Add wcsncasecmp(3).

This commit is contained in:
Jonas 'Sortie' Termansen 2014-05-28 20:56:53 +02:00
parent 01b7754c29
commit e4dd7c0d5a
3 changed files with 44 additions and 1 deletions
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1
libc/Makefile
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@ -256,6 +256,7 @@ wchar/wcscspn.o \
wchar/wcsdup.o \
wchar/wcsftime.o \
wchar/wcslen.o \
wchar/wcsncasecmp.o \
wchar/wcsncat.o \
wchar/wcsncmp.o \
wchar/wcsncpy.o \

2
libc/include/wchar.h
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@ -203,7 +203,7 @@ int wcscasecmp(const wchar_t*, const wchar_t*);
/* TODO: int wcscasecmp_l(const wchar_t*, const wchar_t*, locale_t); */
/* TODO: int wcscoll_l(const wchar_t*, const wchar_t*, locale_t); */
wchar_t* wcsdup(const wchar_t*);
/* TODO: int wcsncasecmp(const wchar_t*, const wchar_t *, size_t); */
int wcsncasecmp(const wchar_t*, const wchar_t *, size_t);
/* TODO: int wcsncasecmp_l(const wchar_t*, const wchar_t *, size_t, locale_t); */
/* TODO: size_t wcsnlen(const wchar_t*, size_t); */
size_t wcsnrtombs(char* __restrict, const wchar_t** __restrict, size_t, size_t, mbstate_t* __restrict);

42
libc/wchar/wcsncasecmp.cpp Normal file
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@ -0,0 +1,42 @@
/*******************************************************************************
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 maxcount)
{
while ( maxcount-- )
{
wchar_t ac = towlower(*a++), bc = towlower(*b++);
if ( ac == L'\0' && bc == L'\0' )
return 0;
if ( ac < bc )
return -1;
if ( ac > bc )
return 1;
}
return 0;
}