boost::proto::functional::flatten Struct Reference

A PolymorphicFunctionObject type that returns a "flattened" view of a Proto expression tree. More...

#include <fusion.hpp>

Classes
struct	result
struct	result< This(Expr &)>
struct	result< This(Expr)>

Public Member Functions
template<typename Expr >
proto::detail::flat_view< Expr > const	operator() (Expr &e) const
template<typename Expr >
proto::detail::flat_view< Expr const > const	operator() (Expr const &e) const

Detailed Description

A PolymorphicFunctionObject type that returns a "flattened" view of a Proto expression tree.

A PolymorphicFunctionObject type that returns a "flattened" view of a Proto expression tree. For a tree with a top-most node tag of type T, the elements of the flattened sequence are determined by recursing into each child node with the same tag type and returning those nodes of different type. So for instance, the Proto expression tree corresponding to the expression a | b | c has a flattened view with elements [a, b, c], even though the tree is grouped as ((a | b) | c).

Member Function Documentation

template<typename Expr >

proto::detail::flat_view<Expr> const boost::proto::functional::flatten::operator() ( Expr &  e ) const

inline

template<typename Expr >

proto::detail::flat_view<Expr const> const boost::proto::functional::flatten::operator() ( Expr const &  e ) const

inline

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The documentation for this struct was generated from the following file:

• boost_1_57_0/boost/proto/fusion.hpp