cases.h revision f5256e16dfc425c1d466f6308d4026d529ce9e0b
14a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project//===----------------------------------------------------------------------===// 24a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project// 34a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project// The LLVM Compiler Infrastructure 44a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project// 54a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project// This file is distributed under the University of Illinois Open Source 64a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project// License. See LICENSE.TXT for details. 74a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project// 84a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project//===----------------------------------------------------------------------===// 94a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 104a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project// <complex> 114a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 124a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project// test cases 134a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 144a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#ifndef CASES_H 154a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#define CASES_H 164a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 174a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#include <complex> 184a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#include <cassert> 194a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 204a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Projectstd::complex<double> x[] = 214a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project{ 224a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>( 1.e-6, 1.e-6), 234a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(-1.e-6, 1.e-6), 244a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(-1.e-6, -1.e-6), 254a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>( 1.e-6, -1.e-6), 264a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 274a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>( 1.e+6, 1.e-6), 284a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(-1.e+6, 1.e-6), 294a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(-1.e+6, -1.e-6), 304a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>( 1.e+6, -1.e-6), 314a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 324a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>( 1.e-6, 1.e+6), 334a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(-1.e-6, 1.e+6), 344a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(-1.e-6, -1.e+6), 354a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>( 1.e-6, -1.e+6), 364a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 374a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>( 1.e+6, 1.e+6), 384a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(-1.e+6, 1.e+6), 394a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(-1.e+6, -1.e+6), 404a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>( 1.e+6, -1.e+6), 414a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 424a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(NAN, NAN), 434a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(-INFINITY, NAN), 444a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(-2, NAN), 454a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(-1, NAN), 464a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(-0.5, NAN), 474a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(-0., NAN), 484a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(+0., NAN), 494a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(0.5, NAN), 504a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(1, NAN), 514a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(2, NAN), 524a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(INFINITY, NAN), 534a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 544a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(NAN, -INFINITY), 554a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(-INFINITY, -INFINITY), 564a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(-2, -INFINITY), 574a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(-1, -INFINITY), 584a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(-0.5, -INFINITY), 594a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(-0., -INFINITY), 604a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(+0., -INFINITY), 614a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(0.5, -INFINITY), 624a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(1, -INFINITY), 634a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(2, -INFINITY), 644a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(INFINITY, -INFINITY), 654a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 664a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(NAN, -2), 674a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(-INFINITY, -2), 684a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(-2, -2), 694a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(-1, -2), 704a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(-0.5, -2), 714a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(-0., -2), 724a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(+0., -2), 734a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(0.5, -2), 744a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(1, -2), 754a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(2, -2), 764a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(INFINITY, -2), 774a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 784a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(NAN, -1), 794a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(-INFINITY, -1), 804a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(-2, -1), 814a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(-1, -1), 824a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(-0.5, -1), 834a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(-0., -1), 844a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(+0., -1), 854a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(0.5, -1), 864a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(1, -1), 874a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project std::complex<double>(2, -1), 88 std::complex<double>(INFINITY, -1), 89 90 std::complex<double>(NAN, -0.5), 91 std::complex<double>(-INFINITY, -0.5), 92 std::complex<double>(-2, -0.5), 93 std::complex<double>(-1, -0.5), 94 std::complex<double>(-0.5, -0.5), 95 std::complex<double>(-0., -0.5), 96 std::complex<double>(+0., -0.5), 97 std::complex<double>(0.5, -0.5), 98 std::complex<double>(1, -0.5), 99 std::complex<double>(2, -0.5), 100 std::complex<double>(INFINITY, -0.5), 101 102 std::complex<double>(NAN, -0.), 103 std::complex<double>(-INFINITY, -0.), 104 std::complex<double>(-2, -0.), 105 std::complex<double>(-1, -0.), 106 std::complex<double>(-0.5, -0.), 107 std::complex<double>(-0., -0.), 108 std::complex<double>(+0., -0.), 109 std::complex<double>(0.5, -0.), 110 std::complex<double>(1, -0.), 111 std::complex<double>(2, -0.), 112 std::complex<double>(INFINITY, -0.), 113 114 std::complex<double>(NAN, +0.), 115 std::complex<double>(-INFINITY, +0.), 116 std::complex<double>(-2, +0.), 117 std::complex<double>(-1, +0.), 118 std::complex<double>(-0.5, +0.), 119 std::complex<double>(-0., +0.), 120 std::complex<double>(+0., +0.), 121 std::complex<double>(0.5, +0.), 122 std::complex<double>(1, +0.), 123 std::complex<double>(2, +0.), 124 std::complex<double>(INFINITY, +0.), 125 126 std::complex<double>(NAN, 0.5), 127 std::complex<double>(-INFINITY, 0.5), 128 std::complex<double>(-2, 0.5), 129 std::complex<double>(-1, 0.5), 130 std::complex<double>(-0.5, 0.5), 131 std::complex<double>(-0., 0.5), 132 std::complex<double>(+0., 0.5), 133 std::complex<double>(0.5, 0.5), 134 std::complex<double>(1, 0.5), 135 std::complex<double>(2, 0.5), 136 std::complex<double>(INFINITY, 0.5), 137 138 std::complex<double>(NAN, 1), 139 std::complex<double>(-INFINITY, 1), 140 std::complex<double>(-2, 1), 141 std::complex<double>(-1, 1), 142 std::complex<double>(-0.5, 1), 143 std::complex<double>(-0., 1), 144 std::complex<double>(+0., 1), 145 std::complex<double>(0.5, 1), 146 std::complex<double>(1, 1), 147 std::complex<double>(2, 1), 148 std::complex<double>(INFINITY, 1), 149 150 std::complex<double>(NAN, 2), 151 std::complex<double>(-INFINITY, 2), 152 std::complex<double>(-2, 2), 153 std::complex<double>(-1, 2), 154 std::complex<double>(-0.5, 2), 155 std::complex<double>(-0., 2), 156 std::complex<double>(+0., 2), 157 std::complex<double>(0.5, 2), 158 std::complex<double>(1, 2), 159 std::complex<double>(2, 2), 160 std::complex<double>(INFINITY, 2), 161 162 std::complex<double>(NAN, INFINITY), 163 std::complex<double>(-INFINITY, INFINITY), 164 std::complex<double>(-2, INFINITY), 165 std::complex<double>(-1, INFINITY), 166 std::complex<double>(-0.5, INFINITY), 167 std::complex<double>(-0., INFINITY), 168 std::complex<double>(+0., INFINITY), 169 std::complex<double>(0.5, INFINITY), 170 std::complex<double>(1, INFINITY), 171 std::complex<double>(2, INFINITY), 172 std::complex<double>(INFINITY, INFINITY) 173}; 174 175enum {zero, non_zero, inf, NaN, non_zero_nan}; 176 177template <class T> 178int 179classify(const std::complex<T>& x) 180{ 181 if (x == std::complex<T>()) 182 return zero; 183 if (std::isinf(x.real()) || std::isinf(x.imag())) 184 return inf; 185 if (std::isnan(x.real()) && std::isnan(x.imag())) 186 return NaN; 187 if (std::isnan(x.real())) 188 { 189 if (x.imag() == T(0)) 190 return NaN; 191 return non_zero_nan; 192 } 193 if (std::isnan(x.imag())) 194 { 195 if (x.real() == T(0)) 196 return NaN; 197 return non_zero_nan; 198 } 199 return non_zero; 200} 201 202inline 203int 204classify(double x) 205{ 206 if (x == 0) 207 return zero; 208 if (std::isinf(x)) 209 return inf; 210 if (std::isnan(x)) 211 return NaN; 212 return non_zero; 213} 214 215void is_about(float x, float y) 216{ 217 assert(std::abs((x-y)/(x+y)) < 1.e-6); 218} 219 220void is_about(double x, double y) 221{ 222 assert(std::abs((x-y)/(x+y)) < 1.e-14); 223} 224 225void is_about(long double x, long double y) 226{ 227 assert(std::abs((x-y)/(x+y)) < 1.e-14); 228} 229 230#endif 231