1 // This file is part of Eigen, a lightweight C++ template library 2 // for linear algebra. 3 // 4 // Copyright (C) 2008 Gael Guennebaud <gael.guennebaud (at) inria.fr> 5 // 6 // This Source Code Form is subject to the terms of the Mozilla 7 // Public License v. 2.0. If a copy of the MPL was not distributed 8 // with this file, You can obtain one at http://mozilla.org/MPL/2.0/. 9 10 #include "main.h" 11 12 template<typename From, typename To> 13 bool check_is_convertible(const From&, const To&) 14 { 15 return internal::is_convertible<From,To>::value; 16 } 17 18 void test_meta() 19 { 20 VERIFY((internal::conditional<(3<4),internal::true_type, internal::false_type>::type::value)); 21 VERIFY(( internal::is_same<float,float>::value)); 22 VERIFY((!internal::is_same<float,double>::value)); 23 VERIFY((!internal::is_same<float,float&>::value)); 24 VERIFY((!internal::is_same<float,const float&>::value)); 25 26 VERIFY(( internal::is_same<float,internal::remove_all<const float&>::type >::value)); 27 VERIFY(( internal::is_same<float,internal::remove_all<const float*>::type >::value)); 28 VERIFY(( internal::is_same<float,internal::remove_all<const float*&>::type >::value)); 29 VERIFY(( internal::is_same<float,internal::remove_all<float**>::type >::value)); 30 VERIFY(( internal::is_same<float,internal::remove_all<float**&>::type >::value)); 31 VERIFY(( internal::is_same<float,internal::remove_all<float* const *&>::type >::value)); 32 VERIFY(( internal::is_same<float,internal::remove_all<float* const>::type >::value)); 33 34 // test add_const 35 VERIFY(( internal::is_same< internal::add_const<float>::type, const float >::value)); 36 VERIFY(( internal::is_same< internal::add_const<float*>::type, float* const>::value)); 37 VERIFY(( internal::is_same< internal::add_const<float const*>::type, float const* const>::value)); 38 VERIFY(( internal::is_same< internal::add_const<float&>::type, float& >::value)); 39 40 // test remove_const 41 VERIFY(( internal::is_same< internal::remove_const<float const* const>::type, float const* >::value)); 42 VERIFY(( internal::is_same< internal::remove_const<float const*>::type, float const* >::value)); 43 VERIFY(( internal::is_same< internal::remove_const<float* const>::type, float* >::value)); 44 45 // test add_const_on_value_type 46 VERIFY(( internal::is_same< internal::add_const_on_value_type<float&>::type, float const& >::value)); 47 VERIFY(( internal::is_same< internal::add_const_on_value_type<float*>::type, float const* >::value)); 48 49 VERIFY(( internal::is_same< internal::add_const_on_value_type<float>::type, const float >::value)); 50 VERIFY(( internal::is_same< internal::add_const_on_value_type<const float>::type, const float >::value)); 51 52 VERIFY(( internal::is_same< internal::add_const_on_value_type<const float* const>::type, const float* const>::value)); 53 VERIFY(( internal::is_same< internal::add_const_on_value_type<float* const>::type, const float* const>::value)); 54 55 VERIFY(( internal::is_same<float,internal::remove_reference<float&>::type >::value)); 56 VERIFY(( internal::is_same<const float,internal::remove_reference<const float&>::type >::value)); 57 VERIFY(( internal::is_same<float,internal::remove_pointer<float*>::type >::value)); 58 VERIFY(( internal::is_same<const float,internal::remove_pointer<const float*>::type >::value)); 59 VERIFY(( internal::is_same<float,internal::remove_pointer<float* const >::type >::value)); 60 61 VERIFY(( internal::is_convertible<float,double>::value )); 62 VERIFY(( internal::is_convertible<int,double>::value )); 63 VERIFY(( internal::is_convertible<double,int>::value )); 64 VERIFY((!internal::is_convertible<std::complex<double>,double>::value )); 65 VERIFY(( internal::is_convertible<Array33f,Matrix3f>::value )); 66 // VERIFY((!internal::is_convertible<Matrix3f,Matrix3d>::value )); //does not work because the conversion is prevented by a static assertion 67 VERIFY((!internal::is_convertible<Array33f,int>::value )); 68 VERIFY((!internal::is_convertible<MatrixXf,float>::value )); 69 { 70 float f; 71 MatrixXf A, B; 72 VectorXf a, b; 73 VERIFY(( check_is_convertible(a.dot(b), f) )); 74 VERIFY(( check_is_convertible(a.transpose()*b, f) )); 75 VERIFY((!check_is_convertible(A*B, f) )); 76 VERIFY(( check_is_convertible(A*B, A) )); 77 } 78 79 VERIFY(internal::meta_sqrt<1>::ret == 1); 80 #define VERIFY_META_SQRT(X) VERIFY(internal::meta_sqrt<X>::ret == int(std::sqrt(double(X)))) 81 VERIFY_META_SQRT(2); 82 VERIFY_META_SQRT(3); 83 VERIFY_META_SQRT(4); 84 VERIFY_META_SQRT(5); 85 VERIFY_META_SQRT(6); 86 VERIFY_META_SQRT(8); 87 VERIFY_META_SQRT(9); 88 VERIFY_META_SQRT(15); 89 VERIFY_META_SQRT(16); 90 VERIFY_META_SQRT(17); 91 VERIFY_META_SQRT(255); 92 VERIFY_META_SQRT(256); 93 VERIFY_META_SQRT(257); 94 VERIFY_META_SQRT(1023); 95 VERIFY_META_SQRT(1024); 96 VERIFY_META_SQRT(1025); 97 } 98
