bugprone-exception-escape

Finds functions which may throw an exception directly or indirectly, but they should not. The functions which should not throw exceptions are the following:

• Destructors
• Move constructors
• Move assignment operators
• The main() functions
• swap() functions
• Functions marked with throw() or noexcept
• Other functions given as option

A destructor throwing an exception may result in undefined behavior, resource leaks or unexpected termination of the program. Throwing move constructor or move assignment also may result in undefined behavior or resource leak. The swap() operations expected to be non throwing most of the cases and they are always possible to implement in a non throwing way. Non throwing swap() operations are also used to create move operations. A throwing main() function also results in unexpected termination.

WARNING! This check may be expensive on large source files.

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