...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
A metafunction returning the result type of any
.
template< typename Sequence, typename F > struct any { typedef bool type; };
Table 1.57. Parameters
Parameter |
Requirement |
Description |
---|---|---|
|
A model of Forward Sequence |
Operation's argument |
|
A model of unary Polymorphic Function Object |
Operation's argument |
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
.
Constant.
#include <boost/fusion/algorithm/query/any.hpp> #include <boost/fusion/include/any.hpp>