c++ initialiser list code example

Example 1: member initializer list in c++

// Constructor Member Initializer List

#include <iostream>

class Example
{
private:
    int x, y;

public:
    Example() : x(0), y(0) {}
    Example(int x1, int y1) : x(x1), y(y1) {}
    ~Example() {}
};

int main()
{
    Example e;
}

Example 2: initializer list c++

class Example {
public:
	int m_A, m_B, m_C;
	Example(int a, int b, int c);
};

Example::Example(int a, int b, int c):
	// This is an initializer list
	m_A(a),
	m_B(b),
	m_C(c)
{ /* Constructor code */ }

Example 3: c++ initialization list

class Something
{
private:
    int m_value1;
    double m_value2;
    char m_value3;
 
public:
    Something()
    {
        // These are all assignments, not initializations
        m_value1 = 1;
        m_value2 = 2.2;
        m_value3 = 'c';
    }
};