boost::geometry::util::combine_if< Sequence1, Sequence2, Pred > Struct Template Reference

Meta-function to generate all the combination of pairs of types from a given sequence Sequence except those that does not satisfy the predicate Pred. More...

#include <combine_if.hpp>

Classes
struct	combine

Public Types
typedef mpl::fold< Sequence1, mpl::set0<>, combine >::type	type

Detailed Description

template<typename Sequence1, typename Sequence2, typename Pred>
struct boost::geometry::util::combine_if< Sequence1, Sequence2, Pred >

Meta-function to generate all the combination of pairs of types from a given sequence Sequence except those that does not satisfy the predicate Pred.

Example

typedef mpl::vector<mpl::int_<0>, mpl::int_<1> > types;
typedef combine_if<types, types, always<true_> >::type combinations;
typedef mpl::vector<
    pair<mpl::int_<1>, mpl::int_<1> >,
    pair<mpl::int_<1>, mpl::int_<0> >,
    pair<mpl::int_<0>, mpl::int_<1> >,
    pair<mpl::int_<0>, mpl::int_<0> >        
> result_types;

BOOST_MPL_ASSERT(( mpl::equal<combinations, result_types> ));

Member Typedef Documentation

template<typename Sequence1, typename Sequence2, typename Pred>

typedef mpl::fold<Sequence1, mpl::set0<>, combine>::type boost::geometry::util::combine_if< Sequence1, Sequence2, Pred >::type

---

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

• boost_1_57_0/boost/geometry/util/combine_if.hpp