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as_variant
Joel Falcou edited this page 10 years ago
Synopsis
template <typename L>
struct as_variant;
Description
Transforms a sequence into a boost::variant.
When to use
Brigand collection can only hold types, to be able to work with values, you need to build object such as variant.
Header
#include <brigand/adapted/as_variant.hpp>
Parameters
- L - A sequence of any length
Example
#include <utility>
#include <brigand/adapted/as_variant.hpp>
#include <brigand/sequences/list.hpp>
using the_list = brigand::list<int, char, bool>;
using the_variant = brigand::as_variant<the_list>;
// equivalent of writing boost::variant<int, char, bool>
the_variant t;