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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>