?? staticdestructors.cpp
字號:
//: C10:StaticDestructors.cpp
// From Thinking in C++, 2nd Edition
// Available at http://www.BruceEckel.com
// (c) Bruce Eckel 2000
// Copyright notice in Copyright.txt
// Static object destructors
#include <fstream>
using namespace std;
ofstream out("statdest.out"); // Trace file
class Obj {
char c; // Identifier
public:
Obj(char cc) : c(cc) {
out << "Obj::Obj() for " << c << endl;
}
~Obj() {
out << "Obj::~Obj() for " << c << endl;
}
};
Obj a('a'); // Global (static storage)
// Constructor & destructor always called
void f() {
static Obj b('b');
}
void g() {
static Obj c('c');
}
int main() {
out << "inside main()" << endl;
f(); // Calls static constructor for b
// g() not called
out << "leaving main()" << endl;
} ///:~
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