scoperes.cpp

来自「Thinking in C++ 2nd edition source code 」· C++ 代码 · 共 21 行

//: C04:Scoperes.cpp {O}
// From Thinking in C++, 2nd Edition
// at http://www.BruceEckel.com
// (c) Bruce Eckel 1999
// Copyright notice in Copyright.txt
// Global scope resolution
int A;
void f() {}

struct S {
  int A;
  void f();
};

void S::f() {
  ::f();  // Would be recursive otherwise!
  ::A++;  // Select the global A
  A--;    // The A at struct scope
}
///:~