kolibrios/programs/develop/ktcc/trunk/libc.obj/source/string/strlen.c
turbocat cde4fa851d libc.obj:
- Formatted by clang-format (WebKit-style).
- Removed unnecessary errno linux. 
- Added KOS error codes. 
- String functions have been replaced with more optimal ones for x86. 
- Changed wrappers for 70 sysfunction.

git-svn-id: svn://kolibrios.org@9765 a494cfbc-eb01-0410-851d-a64ba20cac60
2022-04-15 09:00:55 +00:00

17 lines
375 B
C

/* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
#include <string.h>
size_t strlen(const char* str)
{
int d0;
register int __res;
__asm__ __volatile__(
"repne\n\t"
"scasb\n\t"
"notl %0\n\t"
"decl %0"
: "=c"(__res), "=&D"(d0)
: "1"(str), "a"(0), "0"(0xffffffff));
return __res;
}