libc

commit 9ed5a8907d9f6315a532b49df8c21d073ca1ed62
parent b066c30b69f5c9c56003b50e830933ecacd047ff
Author: evenfri <evenfri256@gmail.com>
Date:   Mon, 10 Aug 2026 02:51:24 +0800

fix: strtok and strchr

Diffstat:
M
strchr.c
 | 
14
+++++++-------
M
strtok.c
 | 
6
+++---
M
syscall.c
 | 
2
+-

3 files changed, 11 insertions(+), 11 deletions(-)
diff --git a/strchr.c b/strchr.c
@@ -7,15 +7,15 @@
 
 char *strchr(const char *s, int c) {
   char chr = (char)c;
-  int i = 0;
 
-  while (s[i] != 0) {
-    if (s[i] == chr)
-      return (char*)s + i;
-    if (s[i] == '\0') 
-      return NULL;
-    i++;
+  while (*s != '\0') {
+    if (*s == chr)
+      return (char *)s;
+    s++;
   }
 
+  if (chr == '\0')
+    return (char *)s;
+
   return NULL;
 }
diff --git a/strtok.c b/strtok.c
@@ -12,12 +12,12 @@ char* strtok(char *str, const char *delim) {
     next_token = str;
   }
 
-  if ( next_token == NULL || * next_token == '\0') {
+  if (next_token == NULL) {
     return NULL;
   }
 
   char *token_start =  next_token;
-  while (*token_start && strchr(delim, *token_start)) {
+  while (*token_start != '\0' && strchr(delim, *token_start) != NULL) {
     token_start++;
   }
 
@@ -27,7 +27,7 @@ char* strtok(char *str, const char *delim) {
   }
 
   char *token_end = token_start;
-  while (*token_end && !strchr(delim, *token_end)) {
+  while (*token_end != '\0' && strchr(delim, *token_end) == NULL) {
     token_end++;
   }
 
diff --git a/syscall.c b/syscall.c
@@ -1,5 +1,5 @@
 /*
- *  syscall.c - syscalls wrapper
+ * syscall.c - syscalls wrapper
  * Copyright (C) 2026. All rights reserved.
  */