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Global Variable Example
// Global Variable Example
#include<iostream>
using namespace std;
int globe = 99; // global variable
void foo( int score);
int main()
{
int score = 5; // local variable
cout << "\nIn main, score = " << score <<
endl;
cout << "\nIn main, globe = " << globe <<
endl;
foo( score );
cout << "\nIn main, score = " << score <<
endl;
cout << "\nIn main, globe = " << globe <<
endl;
return 0;
}
void foo( int score )
{
// score is local
cout << "\nIn foo, score = " << score << endl;
cout << "\nIn foo, globe = " << globe << endl;
score = 10;
cout << "\nIn foo, score = " << score << endl;
globe = 222;
cout << "\nIn foo, globe = " << globe << endl;
return;
}
% g++ global.cpp
% a.out
In main, score = 5
In main, globe = 99
In foo, score = 5
In foo, globe = 99
In foo, score = 10
In foo, globe = 222
In main, score = 5
In main, globe = 222
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