?? nonlocal.cpp
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//: C01:Nonlocal.cpp
// From "Thinking in C++, Volume 2", by Bruce Eckel & Chuck Allison.
// (c) 1995-2004 MindView, Inc. All Rights Reserved.
// See source code use permissions stated in the file 'License.txt',
// distributed with the code package available at www.MindView.net.
// setjmp() & longjmp().
#include <iostream>
#include <csetjmp>
using namespace std;
class Rainbow {
public:
Rainbow() { cout << "Rainbow()" << endl; }
~Rainbow() { cout << "~Rainbow()" << endl; }
};
jmp_buf kansas;
void oz() {
Rainbow rb;
for(int i = 0; i < 3; i++)
cout << "there's no place like home" << endl;
longjmp(kansas, 47);
}
int main() {
if(setjmp(kansas) == 0) {
cout << "tornado, witch, munchkins..." << endl;
oz();
} else {
cout << "Auntie Em! "
<< "I had the strangest dream..."
<< endl;
}
} ///:~
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