constparam

constparam.cpp

// constparam

// 읽기(R) 쓰기(W) 인자. read/write paramter.
void refparam(int& param)
{
    param = 10;
}

// 읽기전용 인자를 const로 설정. set the read-only parameter to const type.   
void constparam(const int& param)
{
   // param = 10; // error: you cannot assign to a variable that is const
}