From fc00c656c96528112d05cf0edf8631bd5eaea446 Mon Sep 17 00:00:00 2001 From: Kacper Date: Sun, 7 Dec 2025 20:10:31 +0100 Subject: Add build system scaffolding and libc headers --- lib/libc/string/strstr.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 lib/libc/string/strstr.c (limited to 'lib/libc/string/strstr.c') diff --git a/lib/libc/string/strstr.c b/lib/libc/string/strstr.c new file mode 100644 index 00000000..c3e2d5dd --- /dev/null +++ b/lib/libc/string/strstr.c @@ -0,0 +1,27 @@ +#include + +char *strstr(const char *s1, const char *s2) +{ + const char *p = s1; + const char *q = s2; + + if (*q == '\0') + return (char *)p; + + while (*p != '\0') { + const char *pp = p; + const char *qq = q; + + while (*pp == *qq && *pp != '\0') { + pp++; + qq++; + } + + if (*qq == '\0') + return (char *)p; + + p++; + } + + return NULL; +} -- cgit v1.2.3