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sortix--sortix/libc/string/strcmp.c
Jonas 'Sortie' Termansen 01b59c1947 Convert libc to C.
2016-03-03 23:02:23 +01:00

41 lines
1.3 KiB
C

/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2011, 2012, 2014.
This file is part of the Sortix C Library.
The Sortix C Library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at your
option) any later version.
The Sortix C 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 Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
string/strcmp.c
Compares two strings.
*******************************************************************************/
#include <stdbool.h>
#include <string.h>
int strcmp(const char* a, const char* b)
{
for ( size_t i = 0; true; i++ )
{
unsigned char ac = (unsigned char) a[i];
unsigned char bc = (unsigned char) b[i];
if ( ac == '\0' && bc == '\0' )
return 0;
if ( ac < bc )
return -1;
if ( ac > bc )
return 1;
}
}