diff options
Diffstat (limited to 'externals/mysql/strings/strmov.c')
-rw-r--r-- | externals/mysql/strings/strmov.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/externals/mysql/strings/strmov.c b/externals/mysql/strings/strmov.c new file mode 100644 index 00000000000..1393411dd8f --- /dev/null +++ b/externals/mysql/strings/strmov.c @@ -0,0 +1,57 @@ +/* Copyright (C) 2000 MySQL AB + + 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ + +/* + strmov(dst, src) moves all the characters of src (including the + closing NUL) to dst, and returns a pointer to the new closing NUL in + dst. The similar UNIX routine strcpy returns the old value of dst, + which I have never found useful. strmov(strmov(dst,a),b) moves a//b + into dst, which seems useful. +*/ + +#include <my_global.h> +#include "m_string.h" + +#ifdef BAD_STRING_COMPILER +#undef strmov +#define strmov strmov_overlapp +#endif + +#ifndef strmov + +#if !defined(MC68000) && !defined(DS90) + +char *strmov(register char *dst, register const char *src) +{ + while ((*dst++ = *src++)) ; + return dst-1; +} + +#else + +char *strmov(dst, src) + char *dst, *src; +{ + asm(" movl 4(a7),a1 "); + asm(" movl 8(a7),a0 "); + asm(".L4: movb (a0)+,(a1)+ "); + asm(" jne .L4 "); + asm(" movl a1,d0 "); + asm(" subql #1,d0 "); +} + +#endif + +#endif /* strmov */ |