What is the use of noexcept?

Bitesize Modern C++ : noexcept

by Glennan Carnie

From the article:

We have some basic problems when trying to define error management in C:

• There is no “standard” way of reporting errors. Each company / project / programmer has a different approach
• Given the basic approaches, you cannot guarantee the error will be acted upon.
• There are difficulties with error propagation; particularly with nested calls.

The C++ exception mechanism gives us a facility to deal with run-time errors or fault conditions that make further execution of a program meaningless...