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epvector.h
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61 lines (53 loc) · 2.59 KB
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// Filename: epvector.h
// Created by: drose (19Dec11)
//
////////////////////////////////////////////////////////////////////
//
// PANDA 3D SOFTWARE
// Copyright (c) Carnegie Mellon University. All rights reserved.
//
// All use of this software is subject to the terms of the revised BSD
// license. You should have received a copy of this license along
// with this source code in a file named "LICENSE."
//
////////////////////////////////////////////////////////////////////
#ifndef EPVECTOR_H
#define EPVECTOR_H
#include "pvector.h"
#if defined(HAVE_EIGEN) && defined(_WIN32) && !defined(CPPPARSER)
#include <Eigen/StdVector>
////////////////////////////////////////////////////////////////////
// Class : epvector
// Description : Unfortunately, on Windows, std::vector can't be used
// for classes with explicitly alignment requirements,
// due to a minor mistake in the template definition
// (one of the vector methods receives a concrete
// object, which the compiler flags as an error, even if
// the method is never called).
//
// As a workaround, Eigen provides their own
// specialization of vector, using their own aligned
// allocator. We define that here as epvector, which is
// meant to be a drop-in replacement for pvector for
// classes that include a linmath object that requires
// alignment. Unfortunately, this means we can't use
// the Panda allocator, so memory allocated for this
// vector class won't be tracked as part of Panda's
// memory tracking system. Them's the breaks, kids.
////////////////////////////////////////////////////////////////////
template<class Type>
class epvector : public vector<Type, Eigen::aligned_allocator<Type> > {
public:
typedef Eigen::aligned_allocator<Type> allocator;
typedef vector<Type, allocator> base_class;
typedef TYPENAME base_class::size_type size_type;
epvector(TypeHandle type_handle = pvector_type_handle) : base_class(allocator()) { }
epvector(const epvector<Type> ©) : base_class(copy) { }
epvector(size_type n, TypeHandle type_handle = pvector_type_handle) : base_class(n, Type(), allocator()) { }
epvector(size_type n, const Type &value, TypeHandle type_handle = pvector_type_handle) : base_class(n, value, allocator()) { }
epvector(const Type *begin, const Type *end, TypeHandle type_handle = pvector_type_handle) : base_class(begin, end, allocator()) { }
};
#else // HAVE_EIGEN
#define epvector pvector
#endif // HAVE_EIGEN
#endif