variant.h File Reference

Detailed Description

Definition of the variant class template and associated functions and types.

Authors

Michael Park, (modifications for GUL14) Lars Froehlich

This header file provides a gul14::variant with the same API as C++17's std::variant. It is based on version 1.4.0 of the variant library by Michael Park (https://github.com/mpark/variant). Multiple header files from the original source have been merged into this single file, and multiple conditional compilation blocks have been removed because GUL14 does not support pre-C++14 compilers.

Copyright

Copyright 2015-2017 Michael Park; 2023-2024 Deutsches Elektronen-Synchrotron (DESY), Hamburg Distributed under the Boost Software License, Version 1.0. (See Boost Software License - Version 1.0 or http://boost.org/LICENSE_1_0.txt)

#include <cstddef>
#include <exception>
#include <functional>
#include <initializer_list>
#include <limits>
#include <new>
#include <type_traits>
#include <utility>
#include "gul14/internal.h"
#include "gul14/traits.h"
#include "gul14/utility.h"

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Classes
class	gul14::bad_variant_access
	The exception thrown if the wrong type is accessed on a gul14::variant. More...
struct	gul14::OverloadSet< Fct1, Fcts >
	A function object that works like an overload set of functions. More...
struct	gul14::OverloadSet< Fct1 >
	OverloadSet for a single function object. More...

Namespaces
	gul14
	Namespace gul14 contains all functions and classes of the General Utility Library.

Functions
template<typename Visitor , typename... Variants>
constexpr decltype(auto)	gul14::visit (Visitor &&visitor_fct, Variants &&... variants)
	Call a visitor function with the actual objects stored in the given variants. More...
template<typename... Fct>
auto	gul14::make_overload_set (Fct... f)
	Create an OverloadSet from an arbitrary number of function objects. More...