strcpy

时间：2014-06-06 20:00:13 收藏：0 阅读：206

C++ Code

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char *strcpy1(char *strDest, const char *strSrc)
{
     assert((strDest != NULL) && (strSrc != NULL));
    char *address = strDest;
    while( (*strDest++ = * strSrc++) != ‘\0‘ ) ;
    return address ;
}

char *strcpy2(char *strDest, const char *strSrc)
{
     assert(strSrc != NULL );
     assert(strDest != NULL);
    int i;
    char *address = strDest;
    for(i = 0; strSrc[i] != ‘\0‘; i++)
         strDest[i] = strSrc[i];
     strDest[i] = ‘\0‘;
    return address;
}
// chain operations
int length = strlen( strcpy( strDest, "hello world") );

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