devtools/eigen
1
0
Fork 0
mirror of https://gitlab.com/libeigen/eigen.git synced 2026-04-10 11:34:33 +08:00
Code Issues Packages Projects Releases Wiki Activity

Fix #1911: add benchmark for move semantics with fixed-size matrix

Browse Source 
$ clang++ -O3 bench/bench_move_semantics.cpp -I. -std=c++11 \
        -o bench_move_semantics

$ ./bench_move_semantics
float copy semantics: 1755.97 ms
float move semantics: 55.063 ms
double copy semantics: 2457.65 ms
double move semantics: 55.034 ms
This commit is contained in:
Sebastien Boisvert
2020-06-11 23:43:25 +00:00
committed by Rasmus Munk Larsen
parent a7d2552af8
commit 39cbd6578f
4 changed files with 143 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

35
test/MovableScalar.h Normal file
View File

@@ -0,0 +1,35 @@
// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// Copyright (C) 2020 Sebastien Boisvert <seb@boisvert.info>
//
// This Source Code Form is subject to the terms of the Mozilla
// Public License v. 2.0. If a copy of the MPL was not distributed
// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
#ifndef EIGEN_MISC_MOVABLE_SCALAR_H
#define EIGEN_MISC_MOVABLE_SCALAR_H
#include <vector>
namespace Eigen
{
template <typename Scalar, typename Base = std::vector<Scalar>>
struct MovableScalar : public Base
{
MovableScalar() = default;
~MovableScalar() = default;
MovableScalar(const MovableScalar&) = default;
MovableScalar(MovableScalar&& other) = default;
MovableScalar& operator=(const MovableScalar&) = default;
MovableScalar& operator=(MovableScalar&& other) = default;
MovableScalar(Scalar scalar) : Base(100, scalar) {}
operator Scalar() const { return this->size() > 0 ? this->back() : Scalar(); }
};
template<> struct NumTraits<MovableScalar<float>> : GenericNumTraits<float> {};
}
#endif