strcpy C++实现

#include <iostream>
#include <assert.h>

using namespace std;

char *strcpy(char *strDest, const char *strSrc)
{
    assert((strDest != NULL) && (strSrc != NULL));
    char* retstrDest = strDest;
    while((*strDest++ = *strSrc++) != NULL)
    {
    }
    return retstrDest;
};

int main()
{
   ];
   char* strSrc = "hello world";
   strcpy(strDest, strSrc);
   cout<<strDest<<endl;
}