Boost C++ Libraries

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list_tie
Description

Constructs a tie using a list sequence.

Synopsis
template <typename T0, typename T1,... typename TN>
list<T0&, T1&,... TN&>
list_tie(T0& x0, T1& x1... TN& xN);

The variadic function accepts 0 to FUSION_MAX_LIST_SIZE elements, where FUSION_MAX_LIST_SIZE is a user definable predefined maximum that defaults to 10. You may define the preprocessor constant FUSION_MAX_LIST_SIZE before including any Fusion header to change the default. Example:

#define FUSION_MAX_LIST_SIZE 20
Parameters

Parameter

Requirement

Description

x0, x1,... xN

Instances of T0, T1,... TN

The arguments to list_tie

Expression Semantics
list_tie(x0, x1,... xN);

Return type: list<T0&, T1&,... TN&>

Semantics: Create a list of references from x0, x1,... xN.

Header
#include <boost/fusion/container/generation/list_tie.hpp>
#include <boost/fusion/include/list_tie.hpp>
Example
int i = 123;
double d = 123.456;
list_tie(i, d)

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