金秋作文400字:BSD关于strlen（）的编写

1 /*-
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   33  * $FreeBSD: src/sys/libkern/strlen.c,v 1.6 1999/08/28 00:46:37 peter Exp $
   34  * $DragonFly: src/sys/libkern/strlen.c,v 1.5 2004/01/26 11:09:44 joerg Exp $
   35  */
   36
   37 #include
   38
   39 size_t
   40 strlen(const char *str)
   41 {
   42         const char *s;
   43
   44         for (s = str; *s; ++s);
   45         return(s - str);
   46 }