/* Copyright (c) 2000, 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 : strlen.c Author : Richard A. O'Keefe. / Monty Michael Widenius; ifdef MC68000 Updated: 1986-11-30 Defines: strlen() strlen(s) returns the number of characters in s, that is, the number of non-NUL characters found before the closing NULEosCh. Note: some non-standard C compilers for 32-bit machines take int to be 16 bits, either put up with short strings or change int to long throughout this package. Better yet, BOYCOTT such shoddy compilers. Beware: the asm version works only if strlen(s) < 65536. */ #include "strings.h" #if VaxAsm size_t strlen(char *s) { asm("locc $0,$65535,*4(ap)"); asm("subl3 r0,$65535,r0"); } #else #if defined(MC68000) && defined(DS90) size_t strlen(char *s) { asm(" movl 4(a7),a0 "); asm(" movl a0,a1 "); asm(".L4: tstb (a0)+ "); asm(" jne .L4 "); asm(" movl a0,d0 "); asm(" subl a1,d0 "); asm(" subql #1,d0 "); } #else size_t strlen(register char *s) { register char *startpos; startpos = s; while (*s++); return ((size_t) (s-startpos-1)); } #endif #endif