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

Click here to view the latest version of this page.
PrevUpHomeNext
any
Description

A metafunction returning the result type of any.

Synopsis
template<
    typename Sequence,
    typename F
    >
struct any
{
    typedef bool type;
};

Table 1.57. Parameters

Parameter

Requirement

Description

Sequence

A model of Forward Sequence

Operation's argument

F

A model of unary Polymorphic Function Object

Operation's argument


Expression Semantics
result_of::any<Sequence, F>::type

Return type: bool.

Semantics: Returns the return type of any given a sequence of type Sequence and a unary Polymorphic Function Object of type F. The return type is always bool.

Complexity

Constant.

Header
#include <boost/fusion/algorithm/query/any.hpp>
#include <boost/fusion/include/any.hpp>

PrevUpHomeNext