28 lines
688 B
C++
28 lines
688 B
C++
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/* Demonstrates passing by value. This means that when you pass
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a variable or value to a function; that function makes it's own
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copy of the variable. leaving the original value in tact in the calling function */
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#include <iostream>
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using namespace std;
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void swap(int x, int y);
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int main()
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{
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int x = 5, y = 10;
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cout << "Main. Before swap, X: " << x << " Y: " << y << endl;
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swap(x,y);
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cout << "Main. After swap, X: " << x << " Y: " << y << endl;
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}
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void swap (int x, int y)
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{
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int temp;
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cout << "in Swap. Before swap, X: " << x << " Y: " << y << endl;
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temp = x;
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x = y;
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y = temp;
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cout << "in Swap. After swap, X: " << x << " Y: " << y << endl;
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}
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