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// Thyra: Interfaces and Support for Abstract Numerical Algorithms
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#ifndef THYRA_MULTI_VECTOR_ALLOCATOR_HPP
#define THYRA_MULTI_VECTOR_ALLOCATOR_HPP
#include "Thyra_VectorSpaceBase.hpp"
#include "Teuchos_Assert.hpp"
namespace Thyra {
/** \brief Allocator class to be used with <tt>Teuchos::AbstractFactoryStd</tt> to create
* <tt>MultiVectorBase</tt> objects of a given size.
*/
template<class Scalar>
class MultiVectorAllocator {
public:
/** \brief . */
MultiVectorAllocator() : numMembers_(0) {}
/** \brief . */
typedef Teuchos::RCP<MultiVectorBase<Scalar> > ptr_t; // required!
/** \brief . */
MultiVectorAllocator( const Teuchos::RCP<const VectorSpaceBase<Scalar> > &vs, int numMembers )
: vs_(vs), numMembers_(numMembers)
{
#ifdef TEUCHOS_DEBUG
TEUCHOS_TEST_FOR_EXCEPTION( vs.get()==NULL, std::logic_error, "Error!" );
#endif
}
/** \brief . */
const ptr_t allocate() const { return vs_->createMembers(numMembers_); } // required!
private:
Teuchos::RCP<const VectorSpaceBase<Scalar> > vs_;
int numMembers_;
};
} // namespace Thyra
#endif // THYRA_MULTI_VECTOR_ALLOCATOR_HPP
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