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_48

48. Exceptions

Ray Lischner¹ 

(1)

Ellicott City, MD, USA

 

You may have been dismayed by the lack of error-checking and error-handling in the Explorations so far. That’s about to change. C++, like most modern programming languages, supports exceptions as a way to jump out of the normal flow of control in response to an error or other exceptional condition. This Exploration introduces exceptions: how to throw them, how to catch them, when the language and library use them, and when and how you should use them.

Introducing Exceptions

Exploration 9 introduced vector’s at member function, which retrieves a vector element at a particular index. At the time, I wrote that ...