Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

This is the documentation for a snapshot of the develop branch, built from commit ad6398bcfe.
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exception_type &exception() &

Wide contract lvalue reference observer of the stored exception. NoValuePolicy::wide_exception_check() is first invoked, then the reference to the exception is returned. As a valid default constructed exception is always present, no undefined behaviour occurs if NoValuePolicy::wide_exception_check() returns.

Note that if exception_type is void, only a const overload returning void is present.

Requires: Always available.

Complexity: Depends on NoValuePolicy::wide_exception_check().

Guarantees: None.

Last revised: February 12, 2019 at 16:36:24 UTC


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