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author | Mattias Andrée <maandree@operamail.com> | 2015-11-17 05:50:23 +0100 |
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committer | Mattias Andrée <maandree@operamail.com> | 2015-11-17 05:50:23 +0100 |
commit | c99cadbe02f659264cecb44c053d96383631147d (patch) | |
tree | baeb59b9b45e7ea798c92dc04af9ea55db8a3d2b /src/string/str/strnstr.c | |
parent | add strset (diff) | |
download | slibc-c99cadbe02f659264cecb44c053d96383631147d.tar.gz slibc-c99cadbe02f659264cecb44c053d96383631147d.tar.bz2 slibc-c99cadbe02f659264cecb44c053d96383631147d.tar.xz |
rearrange files
Signed-off-by: Mattias Andrée <maandree@operamail.com>
Diffstat (limited to 'src/string/str/strnstr.c')
-rw-r--r-- | src/string/str/strnstr.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/src/string/str/strnstr.c b/src/string/str/strnstr.c new file mode 100644 index 0000000..8db61ac --- /dev/null +++ b/src/string/str/strnstr.c @@ -0,0 +1,39 @@ +/** + * slibc — Yet another C library + * Copyright © 2015 Mattias Andrée (maandree@member.fsf.org) + * + * 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, either version 3 of the License, or + * (at your option) any later version. + * + * 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, see <http://www.gnu.org/licenses/>. + */ +#include <string.h> + + + +/** + * Finds the first occurrence of a substring. + * This search is case sensitive. + * + * This is a slibc extension added for because it was useful + * in implementing slibc itself. + * + * @param haystack The string to search. + * @param needle The sought after substring. + * @param maxlen The maximum number of character to search. + * @return Pointer to the first occurrence of the + * substring, `NULL` if not found. + */ +char* (strnstr)(const char* haystack, const char* needle, size_t maxlen) +{ + return (memmem)(haystack, strnlen(haystack, maxlen), needle, strlen(needle)); +} + |