diff options
Diffstat (limited to 'lib/string/memcmp.c')
| -rw-r--r-- | lib/string/memcmp.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/lib/string/memcmp.c b/lib/string/memcmp.c new file mode 100644 index 0000000..a050bc7 --- /dev/null +++ b/lib/string/memcmp.c @@ -0,0 +1,40 @@ +/* +** Copyright 2001, Travis Geiselbrecht. All rights reserved. +** Distributed under the terms of the NewOS License. +*/ +/* + * Copyright (c) 2008 Travis Geiselbrecht + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files + * (the "Software"), to deal in the Software without restriction, + * including without limitation the rights to use, copy, modify, merge, + * publish, distribute, sublicense, and/or sell copies of the Software, + * and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY + * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +#include <string.h> +#include <sys/types.h> + +int +memcmp(const void *cs, const void *ct, size_t count) +{ + const unsigned char *su1, *su2; + signed char res = 0; + + for(su1 = cs, su2 = ct; 0 < count; ++su1, ++su2, count--) + if((res = *su1 - *su2) != 0) + break; + return res; +} |
