commaoperator.cpp

来自「这是thinking in java第二版的书上原码.」· C++ 代码 · 共 17 行

//: C03:CommaOperator.cpp
// From Thinking in C++, 2nd Edition
// Available at http://www.BruceEckel.com
// (c) Bruce Eckel 2000
// Copyright notice in Copyright.txt
#include <iostream>
using namespace std;
int main() {
  int a = 0, b = 1, c = 2, d = 3, e = 4;
  a = (b++, c++, d++, e++);
  cout << "a = " << a << endl;
  // The parentheses are critical here. Without
  // them, the statement will evaluate to:
  (a = b++), c++, d++, e++;
  cout << "a = " << a << endl;
} ///:~