模拟实现strlen



#include<stdio.h>

#include<stdlib.h>

#include<assert.h>

intmy_strlen(const char *str)

{

      int count=0;

      assert(str);

      while(str!='\n')

      {

             count++;

             str++;

      }

      return count;

}

intmain()

{

      int my_strlen(const char *p);

      char p="asdfg";

      int ret=my_strlen(str);

      printf("%d\n",my_strlen("abcdefg"));

      system("pause");

      return 0;

}