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/strtok.c | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 lib/libc/string/strtok.c (limited to 'lib/libc/string/strtok.c') diff --git a/lib/libc/string/strtok.c b/lib/libc/string/strtok.c new file mode 100644 index 00000000..33d0d685 --- /dev/null +++ b/lib/libc/string/strtok.c @@ -0,0 +1,40 @@ +#include +#include + +char *strtok(char *restrict s, const char *restrict sep) +{ + static _Thread_local char *state = NULL; + + if (s != NULL) { + state = s; + } + + if (state == NULL) { + return NULL; + } + + char *token = state; + while (*token && strchr(sep, *token)) { + token++; + } + + if (*token == '\0') { + state = NULL; + return NULL; + } + + char *start = token; + + while (*token && strchr(sep, *token) == NULL) { + token++; + } + + if (*token) { + *token = '\0'; + state = token + 1; + } else { + state = NULL; + } + + return start; +} -- cgit v1.2.3