Exploring C++20: The Programmer's Introduction to C++

© Ray Lischner 2020

R. LischnerExploring C++20https://doi.org/10.1007/978-1-4842-5961-0_2

2. Reading C++ Code

Ray Lischner¹ 

(1)

Ellicott City, MD, USA

 

I suspect you already have some knowledge of C++. Maybe you already know C, Java, Perl, or other C-like languages. Maybe you know so many languages that you can readily identify common elements. Let’s test my hypothesis. Take a few minutes to read Listing 2-1, then answer the questions that follow it.

 1 /// Read the program and determine what the program does.

 2

 3 import <iostream>;

 4 import <limits>;

 5

 6 int main()

 7 {

 8     int min{std::numeric_limits<int>::max()};

 9     int max{std::numeric_limits<int>::min()};

10     bool any{false};

11     int x;

12     while (std::cin >> x)

13     {

14         any ...