C++20 for Lazy Programmers: Quick, Easy, and Fun C++ for Beginners

© Will Briggs 2021

W. BriggsC++20 for Lazy Programmershttps://doi.org/10.1007/978-1-4842-6306-8_9

9. Using the Debugger

Will Briggs¹  

(1)

Lynchburg, VA, USA

 

The debugger lets you step through the program, line by line or function by function, seeing the values of variables so you can tell what’s wrong. Good idea, right?

I think so. To cover useful debugger commands, let’s use the debugger to repair the flawed program in Example 9-1. It’s intended to draw a US flag: a sort of a groovy handmade-looking version with hollow stars as shown . (To do a better job, we’d use an image from a file – but for now I want to debug a star-writing function.) The design ...