Use const_cast on a const reference. : const cast « Development « C++

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C++ » Development » const cast Screenshots  Use const_cast on a const reference. #include <iostream> using namespace std; void sqrval(const int &val) {      const_cast<int &> (val) = val * val;     // cast away const on val } int main() {   int x = 22;   cout << "x before call: " << x << endl;   sqrval(x);   cout << "x after call: " << x << endl;   return 0; }                     Related examples in the same category 1. Demonstrates const_cast 2. Demonstrate const_cast. 3. const_cast Demo