//

// 2.1.cpp

// c++1x tutorial

//

// created by changkun at shiyanlou.com

//

// nullptr

#include <iostream>

void foo(char *);

void foo(int);

int main() {

if(NULL == (void *)0)

std::cout << "NULL == 0" << std::endl; // 该行将输出

else

std::cout << "NULL != 0" << std::endl;

foo(0); // 调用 foo(int)

//foo(NULL); // 该行不能通过编译

foo(nullptr); // 调用 foo(char*)

return 0;

}

void foo(char *ch) {

std::cout << "call foo(char*)" << std::endl;

}

void foo(int i) {

std::cout << "call foo(int)" << std::endl;

}