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Diffstat (limited to 'strings/bchange.c')
-rw-r--r-- | strings/bchange.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/strings/bchange.c b/strings/bchange.c new file mode 100644 index 00000000000..99066cf1e95 --- /dev/null +++ b/strings/bchange.c @@ -0,0 +1,39 @@ +/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with this library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, + MA 02111-1307, 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 <global.h> +#include "m_string.h" + +void bchange(register char *dst, uint old_length, register const char *src, uint new_length, uint tot_length) +{ + uint 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); +} |