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3
as_pair
Edouard A. edited this page 10 years ago
Synopsis
template <typename L>
struct as_pair;
Description
Transforms a sequence of two elements into a std::pair.
When to use
Use this adapter when you want to adapt your sequence to an std::pair, for example because you are using a function that requires an std::pair as an argument.
Header
#include <brigand/adapted/as_pair.hpp>
Parameters
- L - A sequence of exactly two elements
Example
#include <utility>
#include <brigand/adapted/as_pair.hpp>
#include <brigand/sequences/list.hpp>
using the_list = brigand::list<int, char>;
// any sequence of two elements is accepted by as_pair
using the_pair = brigand::as_pair<the_list>;
// equivalent of writing std::pair<int, char>
the_pair p;