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sortix--sortix/libc/string/memccpy.cpp

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/*******************************************************************************
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Copyright(C) Jonas 'Sortie' Termansen 2011, 2012, 2014.
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This file is part of the Sortix C Library.
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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.
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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.
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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/>.
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string/memccpy.cpp
Copy memory until length is met or character is encountered.
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*******************************************************************************/
#include <stddef.h>
#include <string.h>
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extern "C" void* memccpy(void* dest_ptr, const void* src_ptr, int c, size_t n)
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{
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unsigned char* dest = (unsigned char*) dest_ptr;
const unsigned char* src = (const unsigned char*) src_ptr;
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for ( size_t i = 0; i < n; i++ )
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{
if ( (dest[i] = src[i]) == (unsigned char) c )
return dest + i + 1;
}
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return NULL;
}