mirror of
https://github.com/ipxe/ipxe
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61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
/*
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* Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*
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* You can also choose to distribute this program under the terms of
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* the Unmodified Binary Distribution Licence (as given in the file
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* COPYING.UBDL), provided that you have satisfied its requirements.
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*/
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FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
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/**
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* @file
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*
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* Wide-character strings
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*
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*/
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#include <wchar.h>
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/**
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* Calculate length of wide-character string
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*
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* @v string String
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* @v max Maximum length (in wide characters)
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* @ret len Length (in wide characters, excluding terminating NUL)
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*/
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size_t wcsnlen ( const wchar_t *string, size_t max ) {
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size_t len = 0;
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while ( max-- && *(string++) )
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len++;
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return len;
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}
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/**
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* Calculate length of wide-character string
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*
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* @v string String
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* @ret len Length (in wide characters, excluding terminating NUL)
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*/
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size_t wcslen ( const wchar_t *string ) {
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return wcsnlen ( string, ( ( ~( ( size_t ) 0 ) ) /
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sizeof ( string[0] ) ) );
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}
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