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 master branch, built from commit b9ab49fc70.
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Struct key_not_found

boost::proto::key_not_found — The type of objects returned when a key-based lookup fails in a transform environment.

Synopsis

// In header: <boost/proto/transform/env.hpp>


struct key_not_found {
};

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