github.com/afumu/libc@v0.0.6/musl/src/string/index.c (about)

     1  #define _BSD_SOURCE
     2  #include <string.h>
     3  #include <strings.h>
     4  
     5  char *index(const char *s, int c)
     6  {
     7  	return strchr(s, c);
     8  }