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eigen/test/initializer_list_construction.cpp

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// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// Copyright (C) 2019 David Tellenbach <david.tellenbach@tellnotes.org>
//
// 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/.
#if defined(__GNUC__) && __GNUC__ >= 10
// GCC 10+ has a bug for unsigned char that thinks we're writing past the
// end of an array when compiled with -O3. This warning is not triggered for
// any other types, nor for other compilers, nor for other optimization levels.
#pragma GCC diagnostic ignored "-Wstringop-overflow"
#endif
#include "main.h"
template <typename Scalar, bool is_integer = NumTraits<Scalar>::IsInteger>
struct TestMethodDispatching {
static void run() {}
};
template <typename Scalar>
struct TestMethodDispatching<Scalar, 1> {
static void run() {
{
Matrix<Scalar, Dynamic, Dynamic> m{3, 4};
Array<Scalar, Dynamic, Dynamic> a{3, 4};
VERIFY(m.rows() == 3);
VERIFY(m.cols() == 4);
VERIFY(a.rows() == 3);
VERIFY(a.cols() == 4);
}
{
Matrix<Scalar, 1, 2> m{3, 4};
Array<Scalar, 1, 2> a{3, 4};
VERIFY(m(0) == 3);
VERIFY(m(1) == 4);
VERIFY(a(0) == 3);
VERIFY(a(1) == 4);
}
{
Matrix<Scalar, 2, 1> m{3, 4};
Array<Scalar, 2, 1> a{3, 4};
VERIFY(m(0) == 3);
VERIFY(m(1) == 4);
VERIFY(a(0) == 3);
VERIFY(a(1) == 4);
}
}
};
template <typename Vec4, typename Vec5>
void fixedsizeVariadicVectorConstruction2() {
{
Vec4 ref = Vec4::Random();
Vec4 v{ref[0], ref[1], ref[2], ref[3]};
VERIFY_IS_APPROX(v, ref);
VERIFY_IS_APPROX(v, (Vec4(ref[0], ref[1], ref[2], ref[3])));
VERIFY_IS_APPROX(v, (Vec4({ref[0], ref[1], ref[2], ref[3]})));
Vec4 v2 = {ref[0], ref[1], ref[2], ref[3]};
VERIFY_IS_APPROX(v2, ref);
}
{
Vec5 ref = Vec5::Random();
Vec5 v{ref[0], ref[1], ref[2], ref[3], ref[4]};
VERIFY_IS_APPROX(v, ref);
VERIFY_IS_APPROX(v, (Vec5(ref[0], ref[1], ref[2], ref[3], ref[4])));
VERIFY_IS_APPROX(v, (Vec5({ref[0], ref[1], ref[2], ref[3], ref[4]})));
Vec5 v2 = {ref[0], ref[1], ref[2], ref[3], ref[4]};
VERIFY_IS_APPROX(v2, ref);
}
}
#define CHECK_MIXSCALAR_V5_APPROX(V, A0, A1, A2, A3, A4) \
{ \
VERIFY_IS_APPROX(V[0], Scalar(A0)); \
VERIFY_IS_APPROX(V[1], Scalar(A1)); \
VERIFY_IS_APPROX(V[2], Scalar(A2)); \
VERIFY_IS_APPROX(V[3], Scalar(A3)); \
VERIFY_IS_APPROX(V[4], Scalar(A4)); \
}
#define CHECK_MIXSCALAR_V5(VEC5, A0, A1, A2, A3, A4) \
{ \
typedef VEC5::Scalar Scalar; \
VEC5 v = {A0, A1, A2, A3, A4}; \
CHECK_MIXSCALAR_V5_APPROX(v, A0, A1, A2, A3, A4); \
}
template <int>
void fixedsizeVariadicVectorConstruction3() {
typedef Matrix<double, 5, 1> Vec5;
typedef Array<float, 5, 1> Arr5;
CHECK_MIXSCALAR_V5(Vec5, 1, 2., -3, 4.121, 5.53252);
CHECK_MIXSCALAR_V5(Arr5, 1, 2., 3.12f, 4.121, 5.53252);
}
template <typename Scalar>
void fixedsizeVariadicVectorConstruction() {
CALL_SUBTEST((fixedsizeVariadicVectorConstruction2<Matrix<Scalar, 4, 1>, Matrix<Scalar, 5, 1>>()));
CALL_SUBTEST((fixedsizeVariadicVectorConstruction2<Matrix<Scalar, 1, 4>, Matrix<Scalar, 1, 5>>()));
CALL_SUBTEST((fixedsizeVariadicVectorConstruction2<Array<Scalar, 4, 1>, Array<Scalar, 5, 1>>()));
CALL_SUBTEST((fixedsizeVariadicVectorConstruction2<Array<Scalar, 1, 4>, Array<Scalar, 1, 5>>()));
}
template <typename Scalar>
void initializerListVectorConstruction() {
Scalar raw[4];
for (int k = 0; k < 4; ++k) {
raw[k] = internal::random<Scalar>();
}
{
Matrix<Scalar, 4, 1> m{{raw[0]}, {raw[1]}, {raw[2]}, {raw[3]}};
Array<Scalar, 4, 1> a{{raw[0]}, {raw[1]}, {raw[2]}, {raw[3]}};
for (int k = 0; k < 4; ++k) {
VERIFY(m(k) == raw[k]);
}
for (int k = 0; k < 4; ++k) {
VERIFY(a(k) == raw[k]);
}
VERIFY_IS_EQUAL(m, (Matrix<Scalar, 4, 1>({{raw[0]}, {raw[1]}, {raw[2]}, {raw[3]}})));
VERIFY((a == (Array<Scalar, 4, 1>({{raw[0]}, {raw[1]}, {raw[2]}, {raw[3]}}))).all());
}
{
Matrix<Scalar, 1, 4> m{{raw[0], raw[1], raw[2], raw[3]}};
Array<Scalar, 1, 4> a{{raw[0], raw[1], raw[2], raw[3]}};
for (int k = 0; k < 4; ++k) {
VERIFY(m(k) == raw[k]);
}
for (int k = 0; k < 4; ++k) {
VERIFY(a(k) == raw[k]);
}
VERIFY_IS_EQUAL(m, (Matrix<Scalar, 1, 4>({{raw[0], raw[1], raw[2], raw[3]}})));
VERIFY((a == (Array<Scalar, 1, 4>({{raw[0], raw[1], raw[2], raw[3]}}))).all());
}
{
Matrix<Scalar, 4, Dynamic> m{{raw[0]}, {raw[1]}, {raw[2]}, {raw[3]}};
Array<Scalar, 4, Dynamic> a{{raw[0]}, {raw[1]}, {raw[2]}, {raw[3]}};
for (int k = 0; k < 4; ++k) {
VERIFY(m(k) == raw[k]);
}
for (int k = 0; k < 4; ++k) {
VERIFY(a(k) == raw[k]);
}
VERIFY_IS_EQUAL(m, (Matrix<Scalar, 4, Dynamic>({{raw[0]}, {raw[1]}, {raw[2]}, {raw[3]}})));
VERIFY((a == (Array<Scalar, 4, Dynamic>({{raw[0]}, {raw[1]}, {raw[2]}, {raw[3]}}))).all());
}
{
Matrix<Scalar, Dynamic, 4> m{{raw[0], raw[1], raw[2], raw[3]}};
Array<Scalar, Dynamic, 4> a{{raw[0], raw[1], raw[2], raw[3]}};
for (int k = 0; k < 4; ++k) {
VERIFY(m(k) == raw[k]);
}
for (int k = 0; k < 4; ++k) {
VERIFY(a(k) == raw[k]);
}
VERIFY_IS_EQUAL(m, (Matrix<Scalar, Dynamic, 4>({{raw[0], raw[1], raw[2], raw[3]}})));
VERIFY((a == (Array<Scalar, Dynamic, 4>({{raw[0], raw[1], raw[2], raw[3]}}))).all());
}
}
template <typename Scalar>
void initializerListMatrixConstruction() {
const Index RowsAtCompileTime = 5;
const Index ColsAtCompileTime = 4;
const Index SizeAtCompileTime = RowsAtCompileTime * ColsAtCompileTime;
Scalar raw[SizeAtCompileTime];
for (int i = 0; i < SizeAtCompileTime; ++i) {
raw[i] = internal::random<Scalar>();
}
{
Matrix<Scalar, Dynamic, Dynamic> m{};
VERIFY(m.cols() == 0);
VERIFY(m.rows() == 0);
VERIFY_IS_EQUAL(m, (Matrix<Scalar, Dynamic, Dynamic>()));
}
{
Matrix<Scalar, 5, 4> m{{raw[0], raw[1], raw[2], raw[3]},
{raw[4], raw[5], raw[6], raw[7]},
{raw[8], raw[9], raw[10], raw[11]},
{raw[12], raw[13], raw[14], raw[15]},
{raw[16], raw[17], raw[18], raw[19]}};
Matrix<Scalar, 5, 4> m2;
m2 << raw[0], raw[1], raw[2], raw[3], raw[4], raw[5], raw[6], raw[7], raw[8], raw[9], raw[10], raw[11], raw[12],
raw[13], raw[14], raw[15], raw[16], raw[17], raw[18], raw[19];
int k = 0;
for (int i = 0; i < RowsAtCompileTime; ++i) {
for (int j = 0; j < ColsAtCompileTime; ++j) {
VERIFY(m(i, j) == raw[k]);
++k;
}
}
VERIFY_IS_EQUAL(m, m2);
}
{
Matrix<Scalar, Dynamic, Dynamic> m{{raw[0], raw[1], raw[2], raw[3]},
{raw[4], raw[5], raw[6], raw[7]},
{raw[8], raw[9], raw[10], raw[11]},
{raw[12], raw[13], raw[14], raw[15]},
{raw[16], raw[17], raw[18], raw[19]}};
VERIFY(m.cols() == 4);
VERIFY(m.rows() == 5);
int k = 0;
for (int i = 0; i < RowsAtCompileTime; ++i) {
for (int j = 0; j < ColsAtCompileTime; ++j) {
VERIFY(m(i, j) == raw[k]);
++k;
}
}
Matrix<Scalar, Dynamic, Dynamic> m2(RowsAtCompileTime, ColsAtCompileTime);
k = 0;
for (int i = 0; i < RowsAtCompileTime; ++i) {
for (int j = 0; j < ColsAtCompileTime; ++j) {
m2(i, j) = raw[k];
++k;
}
}
VERIFY_IS_EQUAL(m, m2);
}
}
template <typename Scalar>
void initializerListArrayConstruction() {
const Index RowsAtCompileTime = 5;
const Index ColsAtCompileTime = 4;
const Index SizeAtCompileTime = RowsAtCompileTime * ColsAtCompileTime;
Scalar raw[SizeAtCompileTime];
for (int i = 0; i < SizeAtCompileTime; ++i) {
raw[i] = internal::random<Scalar>();
}
{
Array<Scalar, Dynamic, Dynamic> a{};
VERIFY(a.cols() == 0);
VERIFY(a.rows() == 0);
}
{
Array<Scalar, 5, 4> m{{raw[0], raw[1], raw[2], raw[3]},
{raw[4], raw[5], raw[6], raw[7]},
{raw[8], raw[9], raw[10], raw[11]},
{raw[12], raw[13], raw[14], raw[15]},
{raw[16], raw[17], raw[18], raw[19]}};
Array<Scalar, 5, 4> m2;
m2 << raw[0], raw[1], raw[2], raw[3], raw[4], raw[5], raw[6], raw[7], raw[8], raw[9], raw[10], raw[11], raw[12],
raw[13], raw[14], raw[15], raw[16], raw[17], raw[18], raw[19];
int k = 0;
for (int i = 0; i < RowsAtCompileTime; ++i) {
for (int j = 0; j < ColsAtCompileTime; ++j) {
VERIFY(m(i, j) == raw[k]);
++k;
}
}
VERIFY_IS_APPROX(m, m2);
}
{
Array<Scalar, Dynamic, Dynamic> m{{raw[0], raw[1], raw[2], raw[3]},
{raw[4], raw[5], raw[6], raw[7]},
{raw[8], raw[9], raw[10], raw[11]},
{raw[12], raw[13], raw[14], raw[15]},
{raw[16], raw[17], raw[18], raw[19]}};
VERIFY(m.cols() == 4);
VERIFY(m.rows() == 5);
int k = 0;
for (int i = 0; i < RowsAtCompileTime; ++i) {
for (int j = 0; j < ColsAtCompileTime; ++j) {
VERIFY(m(i, j) == raw[k]);
++k;
}
}
Array<Scalar, Dynamic, Dynamic> m2(RowsAtCompileTime, ColsAtCompileTime);
k = 0;
for (int i = 0; i < RowsAtCompileTime; ++i) {
for (int j = 0; j < ColsAtCompileTime; ++j) {
m2(i, j) = raw[k];
++k;
}
}
VERIFY_IS_APPROX(m, m2);
}
}
template <typename Scalar>
void dynamicVectorConstruction() {
const Index size = 4;
Scalar raw[size];
for (int i = 0; i < size; ++i) {
raw[i] = internal::random<Scalar>();
}
typedef Matrix<Scalar, Dynamic, 1> VectorX;
{
VectorX v{{raw[0], raw[1], raw[2], raw[3]}};
for (int i = 0; i < size; ++i) {
VERIFY(v(i) == raw[i]);
}
VERIFY(v.rows() == size);
VERIFY(v.cols() == 1);
VERIFY_IS_EQUAL(v, (VectorX{{raw[0], raw[1], raw[2], raw[3]}}));
}
}
EIGEN_DECLARE_TEST(initializer_list_construction) {
CALL_SUBTEST_1(initializerListVectorConstruction<unsigned char>());
CALL_SUBTEST_1(initializerListVectorConstruction<float>());
CALL_SUBTEST_1(initializerListVectorConstruction<double>());
CALL_SUBTEST_1(initializerListVectorConstruction<int>());
CALL_SUBTEST_1(initializerListVectorConstruction<long int>());
CALL_SUBTEST_1(initializerListVectorConstruction<std::ptrdiff_t>());
CALL_SUBTEST_1(initializerListVectorConstruction<std::complex<double>>());
CALL_SUBTEST_1(initializerListVectorConstruction<std::complex<float>>());
CALL_SUBTEST_2(initializerListMatrixConstruction<unsigned char>());
CALL_SUBTEST_2(initializerListMatrixConstruction<float>());
CALL_SUBTEST_2(initializerListMatrixConstruction<double>());
CALL_SUBTEST_2(initializerListMatrixConstruction<int>());
CALL_SUBTEST_2(initializerListMatrixConstruction<long int>());
CALL_SUBTEST_2(initializerListMatrixConstruction<std::ptrdiff_t>());
CALL_SUBTEST_2(initializerListMatrixConstruction<std::complex<double>>());
CALL_SUBTEST_2(initializerListMatrixConstruction<std::complex<float>>());
CALL_SUBTEST_3(initializerListArrayConstruction<unsigned char>());
CALL_SUBTEST_3(initializerListArrayConstruction<float>());
CALL_SUBTEST_3(initializerListArrayConstruction<double>());
CALL_SUBTEST_3(initializerListArrayConstruction<int>());
CALL_SUBTEST_3(initializerListArrayConstruction<long int>());
CALL_SUBTEST_3(initializerListArrayConstruction<std::ptrdiff_t>());
CALL_SUBTEST_3(initializerListArrayConstruction<std::complex<double>>());
CALL_SUBTEST_3(initializerListArrayConstruction<std::complex<float>>());
CALL_SUBTEST_4(fixedsizeVariadicVectorConstruction<unsigned char>());
CALL_SUBTEST_4(fixedsizeVariadicVectorConstruction<float>());
CALL_SUBTEST_4(fixedsizeVariadicVectorConstruction<double>());
CALL_SUBTEST_4(fixedsizeVariadicVectorConstruction<int>());
CALL_SUBTEST_4(fixedsizeVariadicVectorConstruction<long int>());
CALL_SUBTEST_4(fixedsizeVariadicVectorConstruction<std::ptrdiff_t>());
CALL_SUBTEST_4(fixedsizeVariadicVectorConstruction<std::complex<double>>());
CALL_SUBTEST_4(fixedsizeVariadicVectorConstruction<std::complex<float>>());
CALL_SUBTEST_4(fixedsizeVariadicVectorConstruction3<0>());
CALL_SUBTEST_5(TestMethodDispatching<int>::run());
CALL_SUBTEST_5(TestMethodDispatching<long int>::run());
CALL_SUBTEST_6(dynamicVectorConstruction<unsigned char>());
CALL_SUBTEST_6(dynamicVectorConstruction<float>());
CALL_SUBTEST_6(dynamicVectorConstruction<double>());
CALL_SUBTEST_6(dynamicVectorConstruction<int>());
CALL_SUBTEST_6(dynamicVectorConstruction<long int>());
CALL_SUBTEST_6(dynamicVectorConstruction<std::ptrdiff_t>());
CALL_SUBTEST_6(dynamicVectorConstruction<std::complex<double>>());
CALL_SUBTEST_6(dynamicVectorConstruction<std::complex<float>>());
}
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