Hello World
Syntax Highliter in Use
// understanding call-by-value vs call-by-reference #includeint f1 (int, int, int); int f2 (int&, int&, int&); int f3 (int, int&, int); void main () { int i, j, k; i=1; j=2; k=3; cout << endl; cout << "Initial values of i, j, and k are: " << i << ", " << j << ", and " << k << endl << endl; cout << "f1(i,j,k) = " << f1(i,j,k) << endl; cout << "Values of i, j, and k after the call to f1 are: " << i << ", " << j << ", and " << k << endl << endl; cout << "f2(i,j,k) = " << f2(i,j,k) << endl; cout << "Values of i, j, and k after the call to f2 are: " << i << ", " << j << ", and " << k << endl << endl; cout << "f3(i,j,k) = " << f3(i,j,k) << endl; cout << "Values of i, j, and k after the call to f3 are: " << i << ", " << j << ", and " << k << endl; } int f1 (int x, int y, int z) { x=x+5; y=y+5; z=z+5; return(x+y+z); } int f2 (int& x, int& y, int& z) { x=x+5; y=y+5; z=z+5; return(x+y+z); } int f3 (int x, int& y, int z) { x=x+5; y=y+5; z=z+5; return(x+y+z); }
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