44 lines
1.4 KiB
C++
44 lines
1.4 KiB
C++
![]() |
/*******************************************************************************
|
||
|
|
||
|
Copyright(C) Jonas 'Sortie' Termansen 2013.
|
||
|
|
||
|
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/>.
|
||
|
|
||
|
mblen.cpp
|
||
|
Determine number of bytes in next multibyte character.
|
||
|
|
||
|
*******************************************************************************/
|
||
|
|
||
|
#include <stdlib.h>
|
||
|
#include <string.h>
|
||
|
#include <wchar.h>
|
||
|
|
||
|
extern "C" int mblen(const char* s, size_t n)
|
||
|
{
|
||
|
static mbstate_t ps;
|
||
|
if ( !s )
|
||
|
{
|
||
|
memset(&ps, 0, sizeof(ps));
|
||
|
return 0; // TODO: Give the correct return value depending on ps.
|
||
|
}
|
||
|
size_t ret = mbrlen(s, n, &ps);
|
||
|
if ( ret == (size_t) -2 )
|
||
|
return -1;
|
||
|
if ( ret == (size_t) -1 )
|
||
|
return -1;
|
||
|
return (int) ret;
|
||
|
}
|