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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> > ));