From 1e39441089946b5dc69c79daf8ed816ff6ba6194 Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Tue, 1 Sep 2015 00:23:23 +0200 Subject: add string/array comparision functions MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- include/strings.h | 36 +++++++++++++++++++++++++++++++++++- 1 file changed, 35 insertions(+), 1 deletion(-) (limited to 'include/strings.h') diff --git a/include/strings.h b/include/strings.h index 0a4bc5e..15b8b1a 100644 --- a/include/strings.h +++ b/include/strings.h @@ -23,7 +23,6 @@ #define __NEED_size_t - #include @@ -60,6 +59,41 @@ void explicit_bzero(void*, size_t); void bcopy(const void*, void*, size_t) __deprecated("Use 'memmove', or similar function, instead, but be aware of reordered paramters."); +/** + * This function is identical to `memcmp`. + */ +int bcmp(const void*, const void*, size_t) + __deprecated("Use 'memcmp' instead.") + __GCC_ONLY(__attribute__((warn_unused_result))); + + +/** + * Compare two strings alphabetically in a case insensitive manner. + * Be aware, only ASCII characters are case insensitive, non-ASCII + * characters are case sensitive. + * + * @param a A negetive value is returned if this is the lesser. + * @param b A positive value is returned if this is the lesser. + * @return Zero is returned if `a` and `b` are equal, otherwise, + * see the specifications for `a` and `b`. + */ +int strcasecmp(const char*, const char*) + __GCC_ONLY(__attribute__((warn_unused_result, nonnull))); + +/** + * Compare two strings alphabetically in a case insensitive manner. + * Be aware, only ASCII characters are case insensitive, non-ASCII + * characters are case sensitive. + * + * @param a A negetive value is returned if this is the lesser. + * @param b A positive value is returned if this is the lesser. + * @param length The maximum number of characters to compare. + * @return Zero is returned if `a` and `b` are equal, otherwise, + * see the specifications for `a` and `b`. + */ +int strncasecmp(const char*, const char*, size_t) + __GCC_ONLY(__attribute__((warn_unused_result, nonnull))); + #endif -- cgit v1.2.3-70-g09d2