C++ Brain Teasers

Puzzle 17

A Strong Point

a-strong-point.cpp

#include <iostream>

struct Points
{
    Points(int value) : value_(value) {}
    int value_;
};

struct Player
{
    explicit Player(Points points) : points_(points) {}
    Points points_;
};

int main()
{
    Player player(3);
    std::cout << player.points_.value_;
}

Guess the Output
	Try to guess what the output is before moving to the next page.

The program displays the following output:

3

Discussion

The Player struct has a member points_ to keep track of the player’s points. Instead ...