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single_view

single_view is a view into a value as a single element sequence.

Header
#include <boost/fusion/sequence/view/single_view.hpp>
Synopsis
template <typename T>
struct single_view;
Template parameters

Parameter

Description

Default

T

Any type

Model of

Notation

S
A single_view type
s, s2
Instances of single_view
x
An instance of T
Expression Semantics

Semantics of an expression is defined only where it differs from, or is not defined in Forward Sequence.

Expression

Semantics

S(x)

Creates a single_view from x.

S(s)

Copy constructs a single_view from another single_view, s.

s = s2

Assigns to a single_view, s, from another single_view, s2.

Example
single_view<int> view(3);
std::cout << view << std::endl;
Copyright © 2001-2007 Joel de Guzman, Dan Marsden, Tobias Schwinger

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