forked from boostorg/variant2
15 lines
662 B
Markdown
15 lines
662 B
Markdown
# variant2
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A never-valueless C++14 implementation of [std::variant](http://en.cppreference.com/w/cpp/utility/variant). Requires [mp11](https://github.com/pdimov/mp11) and Boost.Config. Intended to be placed into the `libs/variant2` directory of a Boost clone or release, with mp11 in `libs/mp11`.
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To avoid the valueless state, this implementation falls back to using double storage unless
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* all the contained types are nothrow move constructible, or
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* at least one contained type has a nothrow default constructor.
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Supported compilers:
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* g++ 5 or later with -std=c++14 or -std=c++1z
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* clang++ 3.5 or later with -std=c++14 or -std=c++1z
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* Visual Studio 2017
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