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Merge topic 'support_explicit_instantiation'

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6da2dc0c ArrayPortalFromIterators now can be explicitly instantiated.

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !427
This commit is contained in:
Robert Maynard 2016-05-26 14:28:26 -04:00 committed by Kitware Robot
commit 0908a91fc9
1 changed files with 86 additions and 2 deletions
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88
vtkm/cont/internal/ArrayPortalFromIterators.h
View File

@ -29,15 +29,22 @@
#include <iterator>
#include <limits>
#include <boost/type_traits.hpp>
namespace vtkm {
namespace cont {
namespace internal {
template<typename IteratorT, typename Enable= void>
class ArrayPortalFromIterators;
/// This templated implementation of an ArrayPortal allows you to adapt a pair
/// of begin/end iterators to an ArrayPortal interface.
///
template<class IteratorT>
class ArrayPortalFromIterators
class ArrayPortalFromIterators<IteratorT,
typename boost::disable_if<
boost::is_const< typename boost::remove_pointer<IteratorT>::type > >::type>
{
public:
typedef typename std::iterator_traits<IteratorT>::value_type ValueType;
@ -94,7 +101,84 @@ public:
VTKM_EXEC_CONT_EXPORT
void Set(vtkm::Id index, const ValueType& value) const
{
*this->IteratorAt(index) = value;
*(this->BeginIterator + index) = value;
}
VTKM_SUPPRESS_EXEC_WARNINGS
VTKM_EXEC_CONT_EXPORT
IteratorT GetIteratorBegin() const {
return this->BeginIterator;
}
private:
IteratorT BeginIterator;
vtkm::Id NumberOfValues;
VTKM_SUPPRESS_EXEC_WARNINGS
VTKM_EXEC_CONT_EXPORT
IteratorT IteratorAt(vtkm::Id index) const
{
VTKM_ASSERT(index >= 0);
VTKM_ASSERT(index < this->GetNumberOfValues());
return this->BeginIterator + index;
}
};
template<class IteratorT>
class ArrayPortalFromIterators<IteratorT,
typename boost::enable_if<
boost::is_const< typename boost::remove_pointer<IteratorT>::type > >::type>
{
public:
typedef typename std::iterator_traits<IteratorT>::value_type ValueType;
typedef IteratorT IteratorType;
VTKM_SUPPRESS_EXEC_WARNINGS
VTKM_CONT_EXPORT
ArrayPortalFromIterators() { }
VTKM_SUPPRESS_EXEC_WARNINGS
VTKM_CONT_EXPORT
ArrayPortalFromIterators(IteratorT begin, IteratorT end)
: BeginIterator(begin)
{
typename std::iterator_traits<IteratorT>::difference_type numberOfValues =
std::distance(begin, end);
VTKM_ASSERT(numberOfValues >= 0);
#ifndef VTKM_USE_64BIT_IDS
if (numberOfValues > std::numeric_limits<vtkm::Id>::max())
{
throw vtkm::cont::ErrorControlBadAllocation(
"Distance of iterators larger than maximum array size. "
"To support larger arrays, try turning on VTKM_USE_64BIT_IDS.");
}
#endif // !VTKM_USE_64BIT_IDS
this->NumberOfValues = static_cast<vtkm::Id>(numberOfValues);
}
/// Copy constructor for any other ArrayPortalFromIterators with an iterator
/// type that can be copied to this iterator type. This allows us to do any
/// type casting that the iterators do (like the non-const to const cast).
///
template<class OtherIteratorT>
VTKM_CONT_EXPORT
ArrayPortalFromIterators(const ArrayPortalFromIterators<OtherIteratorT> &src)
: BeginIterator(src.GetIteratorBegin()), NumberOfValues(src.GetNumberOfValues())
{ }
VTKM_SUPPRESS_EXEC_WARNINGS
VTKM_EXEC_CONT_EXPORT
vtkm::Id GetNumberOfValues() const
{
return this->NumberOfValues;
}
VTKM_SUPPRESS_EXEC_WARNINGS
VTKM_EXEC_CONT_EXPORT
ValueType Get(vtkm::Id index) const
{
return *this->IteratorAt(index);
}
VTKM_SUPPRESS_EXEC_WARNINGS