~drizzle-trunk/drizzle/development

/* 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 */

/*  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