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template< typename Sequence1 , typename Sequence2 > struct joint_view { // unspecified // ... };
A view into the sequence of elements formed by concatenating Sequence1 and Sequence2 elements.
#include <boost/mpl/joint_view.hpp>
Parameter | Requirement | Description |
---|---|---|
Sequence1, Sequence2 | Forward Sequence | Sequences to create a view on. |
The semantics of an expression are defined only where they differ from, or are not defined in Forward Sequence.
In the following table, v is an instance of joint_view, s1 and s2 are arbitrary Forward Sequences.
Expression | Semantics |
---|---|
joint_view<s1,s2> joint_view<s1,s2>::type |
A lazy Forward Sequence of all the elements in the ranges [begin<s1>::type, end<s1>::type), [begin<s2>::type, end<s2>::type). |
size<v>::type | The size of v; size<v>::value == size<s1>::value + size<s2>::value; linear complexity; see Forward Sequence. |
typedef joint_view< range_c<int,0,10> , range_c<int,10,15> > numbers; BOOST_MPL_ASSERT(( equal< numbers, range_c<int,0,15> > ));