Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

This is an older version of Boost and was released in 2020. The current version is 1.89.0.

join

join

Description

Returns the result of joining 2 sequences, given the sequence types.

Synopsis

template<
    typename LhSequence,
    typename RhSequence
    >
struct join
{
    typedef unspecified type;
};

Expression Semantics

result_of::join<LhSequence, RhSequence>::type

Return type:

A model of Forward Sequence.
A model of Associative Sequence if LhSequence and RhSequence implement the Associative Sequence model.

Semantics: Returns a sequence containing the elements of LhSequence followed by the elements of RhSequence. The order of the elements in the 2 sequences is preserved.

Complexity

Constant.

Header

#include <boost/fusion/algorithm/transformation/join.hpp>
#include <boost/fusion/include/join.hpp>