C语言字符串strlen函数使用

#include<string.h>

#include <stdio.h>
#include <assert.h>
#include <string.h>

typedef unsigned int u_int;
u_int Mystrlen(char *str);

int main(){
char *s = "Melissa Yang";
printf("%s has %d chars",s, Mystrlen(s));
getchar();
return 0;
}

//some ways to realize strlen function
u_int Mystrlen( char *str){
assert(str != NULL);
int len = 0;
while((*str++) != '\0')
len++;
return len;
}
//int len = 0;
//while((*str++ != '/0'))