vector_cast.hh
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//=============================================================================
//
// Helper Functions for binary reading / writing
//
//=============================================================================
#ifndef OPENMESH_VECTORCAST_HH
#define OPENMESH_VECTORCAST_HH
//== INCLUDES =================================================================
#include <OpenMesh/Core/System/config.h>
#include <OpenMesh/Core/Utils/vector_traits.hh>
#include <OpenMesh/Core/Utils/GenProg.hh>
#include <OpenMesh/Core/Geometry/VectorT.hh>
//== NAMESPACES ===============================================================
namespace OpenMesh {
//=============================================================================
//-----------------------------------------------------------------------------
template <typename src_t, typename dst_t, int n>
inline void vector_cast( const src_t &_src, dst_t &_dst, GenProg::Int2Type<n> )
{
assert_compile(vector_traits<dst_t>::size_ <= vector_traits<src_t>::size_)
vector_cast(_src,_dst, GenProg::Int2Type<n-1>());
_dst[n-1] = static_cast<typename vector_traits<dst_t>::value_type >(_src[n-1]);
}
template <typename src_t, typename dst_t>
inline void vector_cast( const src_t & /*_src*/, dst_t & /*_dst*/, GenProg::Int2Type<0> )
{
}
template <typename src_t, typename dst_t, int n>
inline void vector_copy( const src_t &_src, dst_t &_dst, GenProg::Int2Type<n> )
{
assert_compile(vector_traits<dst_t>::size_ <= vector_traits<src_t>::size_)
vector_copy(_src,_dst, GenProg::Int2Type<n-1>());
_dst[n-1] = _src[n-1];
}
template <typename src_t, typename dst_t>
inline void vector_copy( const src_t & /*_src*/, dst_t & /*_dst*/ , GenProg::Int2Type<0> )
{
}
//-----------------------------------------------------------------------------
#ifndef DOXY_IGNORE_THIS
template <typename dst_t, typename src_t>
struct vector_caster
{
typedef dst_t return_type;
inline static return_type cast(const src_t& _src)
{
dst_t dst;
vector_cast(_src, dst, GenProg::Int2Type<vector_traits<dst_t>::size_>());
return dst;
}
};
#if !defined(OM_CC_MSVC)
template <typename dst_t>
struct vector_caster<dst_t,dst_t>
{
typedef const dst_t& return_type;
inline static return_type cast(const dst_t& _src)
{
return _src;
}
};
#endif
#endif
//-----------------------------------------------------------------------------
template <typename dst_t, typename src_t>
inline
typename vector_caster<dst_t, src_t>::return_type
vector_cast(const src_t& _src )
{
return vector_caster<dst_t, src_t>::cast(_src);
}
//=============================================================================
} // namespace OpenMesh
//=============================================================================
#endif // OPENMESH_MESHREADER_HH defined
//=============================================================================
OpenMesh::vector_traits::value_type
T::value_type value_type
Type of the scalar value.
Definition: vector_traits.hh:99
OpenMesh::vector_copy
void vector_copy(const src_t &_src, dst_t &_dst, GenProg::Int2Type< n >)
Cast vector type to another vector type by copying the vector elements.
Definition: vector_cast.hh:99
OpenMesh
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:64
OpenMesh::vector_cast
void vector_cast(const src_t &_src, dst_t &_dst, GenProg::Int2Type< n >)
Cast vector type to another vector type by copying the vector elements.
Definition: vector_cast.hh:86
OpenMesh::vector_traits
Helper class providing information about a vector type.
Definition: vector_traits.hh:93