libc

my libc
git clone git://git.evenfri.pw/libc.git
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strchr.c (358B)

      1 /*
      2  * strchr.c - locate character in string
      3  * Copyright (C) 2026. All rights reserved.
      4  */
      5 
      6 #include "libc.h"
      7 
      8 char *strchr(const char *s, int c) {
      9   unsigned char chr = (unsigned char)c;
     10 
     11   while (*s != '\0') {
     12     if ((unsigned char)*s == chr) {
     13       return (char *)s;
     14     }
     15     s++;
     16   }
     17 
     18   if (chr == '\0') {
     19     return (char *)s;
     20   }
     21 
     22   return NULL;
     23 }