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Code: Select all

#include <iostream>

using namespace std;

class ClassA
{
  public:
    int nValue;
    ClassA() {nValue=1;}
};

class ClassTest
{
 public:
  ClassTest() {Variable1=0;}
  const int func1(const ClassA& A) const { return A.nValue;}
  int func1(const ClassA& A)  {Variable1=2; return A.nValue;}
  int Variable1;
};




int main(void)
{

  const ClassA  MyA;
  const ClassTest MyTest;
  ClassTest MyTest2;

  cout << "=== MyTest" << endl;
  cout << "nValue = "<< MyTest.func1(MyA) << endl;
  cout << "Variable1 =" << MyTest.Variable1 << endl;
  cout << "=== MyTest2" << endl;
  cout << "nValue = "<< MyTest2.func1(MyA) << endl;
  cout << "Variable1 =" << MyTest2.Variable1 << endl;
return 0;
}

Code: Select all

pi@WebPi ~ $ g++ -o test test.cpp
pi@WebPi ~ $ ./test
=== MyTest
nValue = 1
Variable1 =0
=== MyTest2
nValue = 1
Variable1 =2

Code: Select all

#include <iostream>

#define Const const

const int a=2;
Const int b=3;

int  main(void)
{
  std::cout << "a =" << a << std::endl;
  std::cout << "b =" << b << std::endl;
  return 0;
}

Code: Select all

g++ -o const const.cpp