Boost C++ Libraries 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 a7090e8ce1.


struct nonesuch {
    nonesuch() = delete;
    ~nonesuch() = delete;
    nonesuch(const nonesuch&) = delete;
    void operator=(const nonesuch&) = delete;

Header: #include <boost/type_traits/nonesuch.hpp>

Type nonesuch is a placeholder type used when the detection idiom fails - see detected.