/* Copyright (c) 2000, 2001, 2006, 2007 MySQL AB Use is subject to license terms. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ /* File : bchange.c Author : Michael widenius Updated: 1987-03-20 Defines: bchange() bchange(dst, old_length, src, new_length, tot_length) replaces old_length characters at dst to new_length characters from src in a buffer with tot_length bytes. */ #include #include "m_string.h" void bchange(register uchar *dst, size_t old_length, register const uchar *src, size_t new_length, size_t tot_length) { size_t rest=tot_length-old_length; if (old_length < new_length) bmove_upp(dst+rest+new_length,dst+tot_length,rest); else bmove(dst+new_length,dst+old_length,rest); memcpy(dst,src,new_length); }