CPP

c++ .* operator

The .* operator is used to dereference pointers to class members.

c++ ? operator

#include <iostream>

int main() 
{
	int value = (1 > 0 ? 12 : 41);
  	/*
    if 1 > 0 then value is 12, else 41
    */
  	int val2 = (1 > 0 ? (2 > 4 ? 42 : 45) : 41); // nested
}

&& c++

//if both statements are true, return True
//if neither is true or one is false, return True

&& in cpp

if (c >= 48 && c <= 57)
    cout<<"IS DIGIT";

C++ Operators

int sum1 = 100 + 50;        // 150 (100 + 50)
int sum2 = sum1 + 250;      // 400 (150 + 250)
int sum3 = sum2 + sum2;     // 800 (400 + 400)

c++ & operator

Is used to declare a reference to other variables and such.