In Example 19.11 try moving the
const int N = 22;
above or below
int main() {
Observe and explain the difference in output.
Predict the output of Example 19.12.
Example 19.12. src/casts/constcast2.cpp
#include <iostream> void f2(int& n) { ++n; } void f1(const int& n, int m) { if (n < m) f2(const_cast<int&>(n)); } int main() { using namespace std; int num1(10), num2(20); f1(num1, num2); cout << num1 << endl; }
<include src="src/casts/constcast2.cpp" href="src/casts/constcast2.cpp" id="constcast2" mode="cpp"/>
Remove the const_cast
from the call to f2()
inside f1()
, and predict the output again.
[ fromfile: types.xml id: None ]
Generated: 2012-03-02 | © 2012 Alan Ezust and Paul Ezust. |