namespaceoverriding1.cpp

来自「thingking in c++（C++编程思想） 各章节课后练习的答案」· C++ 代码 · 共 15 行

//: C10:NamespaceOverriding1.cpp
// From Thinking in C++, 2nd Edition
// Available at http://www.BruceEckel.com
// (c) Bruce Eckel 2000
// Copyright notice in Copyright.txt
#include "NamespaceMath.h"
int main() {
  using namespace Math;
  Integer a; // Hides Math::a;
  a.setSign(negative);
  // Now scope resolution is necessary
  // to select Math::a :
  Math::a.setSign(positive);
} ///:~