projects / rustc.git / blame
| Commit | Line | Data |
|---|---|---|
| 1b1a35ee XL |
1 | use crate::f64::consts; |
| 2 | use crate::num::FpCategory as Fp; | |
| 3 | use crate::num::*; | |
| 4 | ||
| 5 | #[test] | |
| 6 | fn test_num_f64() { | |
| 7 | test_num(10f64, 2f64); | |
| 8 | } | |
| 9 | ||
| 10 | #[test] | |
| 11 | fn test_min_nan() { | |
| 12 | assert_eq!(f64::NAN.min(2.0), 2.0); | |
| 13 | assert_eq!(2.0f64.min(f64::NAN), 2.0); | |
| 14 | } | |
| 15 | ||
| 16 | #[test] | |
| 17 | fn test_max_nan() { | |
| 18 | assert_eq!(f64::NAN.max(2.0), 2.0); | |
| 19 | assert_eq!(2.0f64.max(f64::NAN), 2.0); | |
| 20 | } | |
| 21 | ||
| 22 | #[test] | |
| 23 | fn test_nan() { | |
| 24 | let nan: f64 = f64::NAN; | |
| 25 | assert!(nan.is_nan()); | |
| 26 | assert!(!nan.is_infinite()); | |
| 27 | assert!(!nan.is_finite()); | |
| 28 | assert!(!nan.is_normal()); | |
| 29 | assert!(nan.is_sign_positive()); | |
| 30 | assert!(!nan.is_sign_negative()); | |
| 31 | assert_eq!(Fp::Nan, nan.classify()); | |
| 32 | } | |
| 33 | ||
| 34 | #[test] | |
| 35 | fn test_infinity() { | |
| 36 | let inf: f64 = f64::INFINITY; | |
| 37 | assert!(inf.is_infinite()); | |
| 38 | assert!(!inf.is_finite()); | |
| 39 | assert!(inf.is_sign_positive()); | |
| 40 | assert!(!inf.is_sign_negative()); | |
| 41 | assert!(!inf.is_nan()); | |
| 42 | assert!(!inf.is_normal()); | |
| 43 | assert_eq!(Fp::Infinite, inf.classify()); | |
| 44 | } | |
| 45 | ||
| 46 | #[test] | |
| 47 | fn test_neg_infinity() { | |
| 48 | let neg_inf: f64 = f64::NEG_INFINITY; | |
| 49 | assert!(neg_inf.is_infinite()); | |
| 50 | assert!(!neg_inf.is_finite()); | |
| 51 | assert!(!neg_inf.is_sign_positive()); | |
| 52 | assert!(neg_inf.is_sign_negative()); | |
| 53 | assert!(!neg_inf.is_nan()); | |
| 54 | assert!(!neg_inf.is_normal()); | |
| 55 | assert_eq!(Fp::Infinite, neg_inf.classify()); | |
| 56 | } | |
| 57 | ||
| 58 | #[test] | |
| 59 | fn test_zero() { | |
| 60 | let zero: f64 = 0.0f64; | |
| 61 | assert_eq!(0.0, zero); | |
| 62 | assert!(!zero.is_infinite()); | |
| 63 | assert!(zero.is_finite()); | |
| 64 | assert!(zero.is_sign_positive()); | |
| 65 | assert!(!zero.is_sign_negative()); | |
| 66 | assert!(!zero.is_nan()); | |
| 67 | assert!(!zero.is_normal()); | |
| 68 | assert_eq!(Fp::Zero, zero.classify()); | |
| 69 | } | |
| 70 | ||
| 71 | #[test] | |
| 72 | fn test_neg_zero() { | |
| 73 | let neg_zero: f64 = -0.0; | |
| 74 | assert_eq!(0.0, neg_zero); | |
| 75 | assert!(!neg_zero.is_infinite()); | |
| 76 | assert!(neg_zero.is_finite()); | |
| 77 | assert!(!neg_zero.is_sign_positive()); | |
| 78 | assert!(neg_zero.is_sign_negative()); | |
| 79 | assert!(!neg_zero.is_nan()); | |
| 80 | assert!(!neg_zero.is_normal()); | |
| 81 | assert_eq!(Fp::Zero, neg_zero.classify()); | |
| 82 | } | |
| 83 | ||
| 84 | #[cfg_attr(all(target_arch = "wasm32", target_os = "emscripten"), ignore)] // issue 42630 | |
| 85 | #[test] | |
| 86 | fn test_one() { | |
| 87 | let one: f64 = 1.0f64; | |
| 88 | assert_eq!(1.0, one); | |
| 89 | assert!(!one.is_infinite()); | |
| 90 | assert!(one.is_finite()); | |
| 91 | assert!(one.is_sign_positive()); | |
| 92 | assert!(!one.is_sign_negative()); | |
| 93 | assert!(!one.is_nan()); | |
| 94 | assert!(one.is_normal()); | |
| 95 | assert_eq!(Fp::Normal, one.classify()); | |
| 96 | } | |
| 97 | ||
| 98 | #[test] | |
| 99 | fn test_is_nan() { | |
| 100 | let nan: f64 = f64::NAN; | |
| 101 | let inf: f64 = f64::INFINITY; | |
| 102 | let neg_inf: f64 = f64::NEG_INFINITY; | |
| 103 | assert!(nan.is_nan()); | |
| 104 | assert!(!0.0f64.is_nan()); | |
| 105 | assert!(!5.3f64.is_nan()); | |
| 106 | assert!(!(-10.732f64).is_nan()); | |
| 107 | assert!(!inf.is_nan()); | |
| 108 | assert!(!neg_inf.is_nan()); | |
| 109 | } | |
| 110 | ||
| 111 | #[test] | |
| 112 | fn test_is_infinite() { | |
| 113 | let nan: f64 = f64::NAN; | |
| 114 | let inf: f64 = f64::INFINITY; | |
| 115 | let neg_inf: f64 = f64::NEG_INFINITY; | |
| 116 | assert!(!nan.is_infinite()); | |
| 117 | assert!(inf.is_infinite()); | |
| 118 | assert!(neg_inf.is_infinite()); | |
| 119 | assert!(!0.0f64.is_infinite()); | |
| 120 | assert!(!42.8f64.is_infinite()); | |
| 121 | assert!(!(-109.2f64).is_infinite()); | |
| 122 | } | |
| 123 | ||
| 124 | #[test] | |
| 125 | fn test_is_finite() { | |
| 126 | let nan: f64 = f64::NAN; | |
| 127 | let inf: f64 = f64::INFINITY; | |
| 128 | let neg_inf: f64 = f64::NEG_INFINITY; | |
| 129 | assert!(!nan.is_finite()); | |
| 130 | assert!(!inf.is_finite()); | |
| 131 | assert!(!neg_inf.is_finite()); | |
| 132 | assert!(0.0f64.is_finite()); | |
| 133 | assert!(42.8f64.is_finite()); | |
| 134 | assert!((-109.2f64).is_finite()); | |
| 135 | } | |
| 136 | ||
| 137 | #[cfg_attr(all(target_arch = "wasm32", target_os = "emscripten"), ignore)] // issue 42630 | |
| 138 | #[test] | |
| 139 | fn test_is_normal() { | |
| 140 | let nan: f64 = f64::NAN; | |
| 141 | let inf: f64 = f64::INFINITY; | |
| 142 | let neg_inf: f64 = f64::NEG_INFINITY; | |
| 143 | let zero: f64 = 0.0f64; | |
| 144 | let neg_zero: f64 = -0.0; | |
| 145 | assert!(!nan.is_normal()); | |
| 146 | assert!(!inf.is_normal()); | |
| 147 | assert!(!neg_inf.is_normal()); | |
| 148 | assert!(!zero.is_normal()); | |
| 149 | assert!(!neg_zero.is_normal()); | |
| 150 | assert!(1f64.is_normal()); | |
| 151 | assert!(1e-307f64.is_normal()); | |
| 152 | assert!(!1e-308f64.is_normal()); | |
| 153 | } | |
| 154 | ||
| 155 | #[cfg_attr(all(target_arch = "wasm32", target_os = "emscripten"), ignore)] // issue 42630 | |
| 156 | #[test] | |
| 157 | fn test_classify() { | |
| 158 | let nan: f64 = f64::NAN; | |
| 159 | let inf: f64 = f64::INFINITY; | |
| 160 | let neg_inf: f64 = f64::NEG_INFINITY; | |
| 161 | let zero: f64 = 0.0f64; | |
| 162 | let neg_zero: f64 = -0.0; | |
| 163 | assert_eq!(nan.classify(), Fp::Nan); | |
| 164 | assert_eq!(inf.classify(), Fp::Infinite); | |
| 165 | assert_eq!(neg_inf.classify(), Fp::Infinite); | |
| 166 | assert_eq!(zero.classify(), Fp::Zero); | |
| 167 | assert_eq!(neg_zero.classify(), Fp::Zero); | |
| 168 | assert_eq!(1e-307f64.classify(), Fp::Normal); | |
| 169 | assert_eq!(1e-308f64.classify(), Fp::Subnormal); | |
| 170 | } | |
| 171 | ||
| 172 | #[test] | |
| 173 | fn test_floor() { | |
| 174 | assert_approx_eq!(1.0f64.floor(), 1.0f64); | |
| 175 | assert_approx_eq!(1.3f64.floor(), 1.0f64); | |
| 176 | assert_approx_eq!(1.5f64.floor(), 1.0f64); | |
| 177 | assert_approx_eq!(1.7f64.floor(), 1.0f64); | |
| 178 | assert_approx_eq!(0.0f64.floor(), 0.0f64); | |
| 179 | assert_approx_eq!((-0.0f64).floor(), -0.0f64); | |
| 180 | assert_approx_eq!((-1.0f64).floor(), -1.0f64); | |
| 181 | assert_approx_eq!((-1.3f64).floor(), -2.0f64); | |
| 182 | assert_approx_eq!((-1.5f64).floor(), -2.0f64); | |
| 183 | assert_approx_eq!((-1.7f64).floor(), -2.0f64); | |
| 184 | } | |
| 185 | ||
| 186 | #[test] | |
| 187 | fn test_ceil() { | |
| 188 | assert_approx_eq!(1.0f64.ceil(), 1.0f64); | |
| 189 | assert_approx_eq!(1.3f64.ceil(), 2.0f64); | |
| 190 | assert_approx_eq!(1.5f64.ceil(), 2.0f64); | |
| 191 | assert_approx_eq!(1.7f64.ceil(), 2.0f64); | |
| 192 | assert_approx_eq!(0.0f64.ceil(), 0.0f64); | |
| 193 | assert_approx_eq!((-0.0f64).ceil(), -0.0f64); | |
| 194 | assert_approx_eq!((-1.0f64).ceil(), -1.0f64); | |
| 195 | assert_approx_eq!((-1.3f64).ceil(), -1.0f64); | |
| 196 | assert_approx_eq!((-1.5f64).ceil(), -1.0f64); | |
| 197 | assert_approx_eq!((-1.7f64).ceil(), -1.0f64); | |
| 198 | } | |
| 199 | ||
| 200 | #[test] | |
| 201 | fn test_round() { | |
| 202 | assert_approx_eq!(1.0f64.round(), 1.0f64); | |
| 203 | assert_approx_eq!(1.3f64.round(), 1.0f64); | |
| 204 | assert_approx_eq!(1.5f64.round(), 2.0f64); | |
| 205 | assert_approx_eq!(1.7f64.round(), 2.0f64); | |
| 206 | assert_approx_eq!(0.0f64.round(), 0.0f64); | |
| 207 | assert_approx_eq!((-0.0f64).round(), -0.0f64); | |
| 208 | assert_approx_eq!((-1.0f64).round(), -1.0f64); | |
| 209 | assert_approx_eq!((-1.3f64).round(), -1.0f64); | |
| 210 | assert_approx_eq!((-1.5f64).round(), -2.0f64); | |
| 211 | assert_approx_eq!((-1.7f64).round(), -2.0f64); | |
| 212 | } | |
| 213 | ||
| 214 | #[test] | |
| 215 | fn test_trunc() { | |
| 216 | assert_approx_eq!(1.0f64.trunc(), 1.0f64); | |
| 217 | assert_approx_eq!(1.3f64.trunc(), 1.0f64); | |
| 218 | assert_approx_eq!(1.5f64.trunc(), 1.0f64); | |
| 219 | assert_approx_eq!(1.7f64.trunc(), 1.0f64); | |
| 220 | assert_approx_eq!(0.0f64.trunc(), 0.0f64); | |
| 221 | assert_approx_eq!((-0.0f64).trunc(), -0.0f64); | |
| 222 | assert_approx_eq!((-1.0f64).trunc(), -1.0f64); | |
| 223 | assert_approx_eq!((-1.3f64).trunc(), -1.0f64); | |
| 224 | assert_approx_eq!((-1.5f64).trunc(), -1.0f64); | |
| 225 | assert_approx_eq!((-1.7f64).trunc(), -1.0f64); | |
| 226 | } | |
| 227 | ||
| 228 | #[test] | |
| 229 | fn test_fract() { | |
| 230 | assert_approx_eq!(1.0f64.fract(), 0.0f64); | |
| 231 | assert_approx_eq!(1.3f64.fract(), 0.3f64); | |
| 232 | assert_approx_eq!(1.5f64.fract(), 0.5f64); | |
| 233 | assert_approx_eq!(1.7f64.fract(), 0.7f64); | |
| 234 | assert_approx_eq!(0.0f64.fract(), 0.0f64); | |
| 235 | assert_approx_eq!((-0.0f64).fract(), -0.0f64); | |
| 236 | assert_approx_eq!((-1.0f64).fract(), -0.0f64); | |
| 237 | assert_approx_eq!((-1.3f64).fract(), -0.3f64); | |
| 238 | assert_approx_eq!((-1.5f64).fract(), -0.5f64); | |
| 239 | assert_approx_eq!((-1.7f64).fract(), -0.7f64); | |
| 240 | } | |
| 241 | ||
| 242 | #[test] | |
| 243 | fn test_abs() { | |
| 244 | assert_eq!(f64::INFINITY.abs(), f64::INFINITY); | |
| 245 | assert_eq!(1f64.abs(), 1f64); | |
| 246 | assert_eq!(0f64.abs(), 0f64); | |
| 247 | assert_eq!((-0f64).abs(), 0f64); | |
| 248 | assert_eq!((-1f64).abs(), 1f64); | |
| 249 | assert_eq!(f64::NEG_INFINITY.abs(), f64::INFINITY); | |
| 250 | assert_eq!((1f64 / f64::NEG_INFINITY).abs(), 0f64); | |
| 251 | assert!(f64::NAN.abs().is_nan()); | |
| 252 | } | |
| 253 | ||
| 254 | #[test] | |
| 255 | fn test_signum() { | |
| 256 | assert_eq!(f64::INFINITY.signum(), 1f64); | |
| 257 | assert_eq!(1f64.signum(), 1f64); | |
| 258 | assert_eq!(0f64.signum(), 1f64); | |
| 259 | assert_eq!((-0f64).signum(), -1f64); | |
| 260 | assert_eq!((-1f64).signum(), -1f64); | |
| 261 | assert_eq!(f64::NEG_INFINITY.signum(), -1f64); | |
| 262 | assert_eq!((1f64 / f64::NEG_INFINITY).signum(), -1f64); | |
| 263 | assert!(f64::NAN.signum().is_nan()); | |
| 264 | } | |
| 265 | ||
| 266 | #[test] | |
| 267 | fn test_is_sign_positive() { | |
| 268 | assert!(f64::INFINITY.is_sign_positive()); | |
| 269 | assert!(1f64.is_sign_positive()); | |
| 270 | assert!(0f64.is_sign_positive()); | |
| 271 | assert!(!(-0f64).is_sign_positive()); | |
| 272 | assert!(!(-1f64).is_sign_positive()); | |
| 273 | assert!(!f64::NEG_INFINITY.is_sign_positive()); | |
| 274 | assert!(!(1f64 / f64::NEG_INFINITY).is_sign_positive()); | |
| 275 | assert!(f64::NAN.is_sign_positive()); | |
| 276 | assert!(!(-f64::NAN).is_sign_positive()); | |
| 277 | } | |
| 278 | ||
| 279 | #[test] | |
| 280 | fn test_is_sign_negative() { | |
| 281 | assert!(!f64::INFINITY.is_sign_negative()); | |
| 282 | assert!(!1f64.is_sign_negative()); | |
| 283 | assert!(!0f64.is_sign_negative()); | |
| 284 | assert!((-0f64).is_sign_negative()); | |
| 285 | assert!((-1f64).is_sign_negative()); | |
| 286 | assert!(f64::NEG_INFINITY.is_sign_negative()); | |
| 287 | assert!((1f64 / f64::NEG_INFINITY).is_sign_negative()); | |
| 288 | assert!(!f64::NAN.is_sign_negative()); | |
| 289 | assert!((-f64::NAN).is_sign_negative()); | |
| 290 | } | |
| 291 | ||
| f2b60f7d FG |
292 | #[allow(unused_macros)] |
| 293 | macro_rules! assert_f64_biteq { | |
| 294 | ($left : expr, $right : expr) => { | |
| 295 | let l: &f64 = &$left; | |
| 296 | let r: &f64 = &$right; | |
| 297 | let lb = l.to_bits(); | |
| 298 | let rb = r.to_bits(); | |
| 299 | assert_eq!(lb, rb, "float {} ({:#x}) is not equal to {} ({:#x})", *l, lb, *r, rb); | |
| 300 | }; | |
| 301 | } | |
| 302 | ||
| 303 | // Ignore test on x87 floating point, these platforms do not guarantee NaN | |
| 304 | // payloads are preserved and flush denormals to zero, failing the tests. | |
| 305 | #[cfg(not(target_arch = "x86"))] | |
| 306 | #[test] | |
| 307 | fn test_next_up() { | |
| 308 | let tiny = f64::from_bits(1); | |
| 309 | let tiny_up = f64::from_bits(2); | |
| 310 | let max_down = f64::from_bits(0x7fef_ffff_ffff_fffe); | |
| 311 | let largest_subnormal = f64::from_bits(0x000f_ffff_ffff_ffff); | |
| 312 | let smallest_normal = f64::from_bits(0x0010_0000_0000_0000); | |
| 313 | assert_f64_biteq!(f64::NEG_INFINITY.next_up(), f64::MIN); | |
| 314 | assert_f64_biteq!(f64::MIN.next_up(), -max_down); | |
| 315 | assert_f64_biteq!((-1.0 - f64::EPSILON).next_up(), -1.0); | |
| 316 | assert_f64_biteq!((-smallest_normal).next_up(), -largest_subnormal); | |
| 317 | assert_f64_biteq!((-tiny_up).next_up(), -tiny); | |
| 318 | assert_f64_biteq!((-tiny).next_up(), -0.0f64); | |
| 319 | assert_f64_biteq!((-0.0f64).next_up(), tiny); | |
| 320 | assert_f64_biteq!(0.0f64.next_up(), tiny); | |
| 321 | assert_f64_biteq!(tiny.next_up(), tiny_up); | |
| 322 | assert_f64_biteq!(largest_subnormal.next_up(), smallest_normal); | |
| 323 | assert_f64_biteq!(1.0f64.next_up(), 1.0 + f64::EPSILON); | |
| 324 | assert_f64_biteq!(f64::MAX.next_up(), f64::INFINITY); | |
| 325 | assert_f64_biteq!(f64::INFINITY.next_up(), f64::INFINITY); | |
| 326 | ||
| 327 | let nan0 = f64::NAN; | |
| 328 | let nan1 = f64::from_bits(f64::NAN.to_bits() ^ 0x000a_aaaa_aaaa_aaaa); | |
| 329 | let nan2 = f64::from_bits(f64::NAN.to_bits() ^ 0x0005_5555_5555_5555); | |
| 330 | assert_f64_biteq!(nan0.next_up(), nan0); | |
| 331 | assert_f64_biteq!(nan1.next_up(), nan1); | |
| 332 | assert_f64_biteq!(nan2.next_up(), nan2); | |
| 333 | } | |
| 334 | ||
| 335 | // Ignore test on x87 floating point, these platforms do not guarantee NaN | |
| 336 | // payloads are preserved and flush denormals to zero, failing the tests. | |
| 337 | #[cfg(not(target_arch = "x86"))] | |
| 338 | #[test] | |
| 339 | fn test_next_down() { | |
| 340 | let tiny = f64::from_bits(1); | |
| 341 | let tiny_up = f64::from_bits(2); | |
| 342 | let max_down = f64::from_bits(0x7fef_ffff_ffff_fffe); | |
| 343 | let largest_subnormal = f64::from_bits(0x000f_ffff_ffff_ffff); | |
| 344 | let smallest_normal = f64::from_bits(0x0010_0000_0000_0000); | |
| 345 | assert_f64_biteq!(f64::NEG_INFINITY.next_down(), f64::NEG_INFINITY); | |
| 346 | assert_f64_biteq!(f64::MIN.next_down(), f64::NEG_INFINITY); | |
| 347 | assert_f64_biteq!((-max_down).next_down(), f64::MIN); | |
| 348 | assert_f64_biteq!((-1.0f64).next_down(), -1.0 - f64::EPSILON); | |
| 349 | assert_f64_biteq!((-largest_subnormal).next_down(), -smallest_normal); | |
| 350 | assert_f64_biteq!((-tiny).next_down(), -tiny_up); | |
| 351 | assert_f64_biteq!((-0.0f64).next_down(), -tiny); | |
| 352 | assert_f64_biteq!((0.0f64).next_down(), -tiny); | |
| 353 | assert_f64_biteq!(tiny.next_down(), 0.0f64); | |
| 354 | assert_f64_biteq!(tiny_up.next_down(), tiny); | |
| 355 | assert_f64_biteq!(smallest_normal.next_down(), largest_subnormal); | |
| 356 | assert_f64_biteq!((1.0 + f64::EPSILON).next_down(), 1.0f64); | |
| 357 | assert_f64_biteq!(f64::MAX.next_down(), max_down); | |
| 358 | assert_f64_biteq!(f64::INFINITY.next_down(), f64::MAX); | |
| 359 | ||
| 360 | let nan0 = f64::NAN; | |
| 361 | let nan1 = f64::from_bits(f64::NAN.to_bits() ^ 0x000a_aaaa_aaaa_aaaa); | |
| 362 | let nan2 = f64::from_bits(f64::NAN.to_bits() ^ 0x0005_5555_5555_5555); | |
| 363 | assert_f64_biteq!(nan0.next_down(), nan0); | |
| 364 | assert_f64_biteq!(nan1.next_down(), nan1); | |
| 365 | assert_f64_biteq!(nan2.next_down(), nan2); | |
| 366 | } | |
| 367 | ||
| 1b1a35ee XL |
368 | #[test] |
| 369 | fn test_mul_add() { | |
| 370 | let nan: f64 = f64::NAN; | |
| 371 | let inf: f64 = f64::INFINITY; | |
| 372 | let neg_inf: f64 = f64::NEG_INFINITY; | |
| 373 | assert_approx_eq!(12.3f64.mul_add(4.5, 6.7), 62.05); | |
| 374 | assert_approx_eq!((-12.3f64).mul_add(-4.5, -6.7), 48.65); | |
| 375 | assert_approx_eq!(0.0f64.mul_add(8.9, 1.2), 1.2); | |
| 376 | assert_approx_eq!(3.4f64.mul_add(-0.0, 5.6), 5.6); | |
| 377 | assert!(nan.mul_add(7.8, 9.0).is_nan()); | |
| 378 | assert_eq!(inf.mul_add(7.8, 9.0), inf); | |
| 379 | assert_eq!(neg_inf.mul_add(7.8, 9.0), neg_inf); | |
| 380 | assert_eq!(8.9f64.mul_add(inf, 3.2), inf); | |
| 381 | assert_eq!((-3.2f64).mul_add(2.4, neg_inf), neg_inf); | |
| 382 | } | |
| 383 | ||
| 384 | #[test] | |
| 385 | fn test_recip() { | |
| 386 | let nan: f64 = f64::NAN; | |
| 387 | let inf: f64 = f64::INFINITY; | |
| 388 | let neg_inf: f64 = f64::NEG_INFINITY; | |
| 389 | assert_eq!(1.0f64.recip(), 1.0); | |
| 390 | assert_eq!(2.0f64.recip(), 0.5); | |
| 391 | assert_eq!((-0.4f64).recip(), -2.5); | |
| 392 | assert_eq!(0.0f64.recip(), inf); | |
| 393 | assert!(nan.recip().is_nan()); | |
| 394 | assert_eq!(inf.recip(), 0.0); | |
| 395 | assert_eq!(neg_inf.recip(), 0.0); | |
| 396 | } | |
| 397 | ||
| 398 | #[test] | |
| 399 | fn test_powi() { | |
| 400 | let nan: f64 = f64::NAN; | |
| 401 | let inf: f64 = f64::INFINITY; | |
| 402 | let neg_inf: f64 = f64::NEG_INFINITY; | |
| 403 | assert_eq!(1.0f64.powi(1), 1.0); | |
| 404 | assert_approx_eq!((-3.1f64).powi(2), 9.61); | |
| 405 | assert_approx_eq!(5.9f64.powi(-2), 0.028727); | |
| 406 | assert_eq!(8.3f64.powi(0), 1.0); | |
| 407 | assert!(nan.powi(2).is_nan()); | |
| 408 | assert_eq!(inf.powi(3), inf); | |
| 409 | assert_eq!(neg_inf.powi(2), inf); | |
| 410 | } | |
| 411 | ||
| 412 | #[test] | |
| 413 | fn test_powf() { | |
| 414 | let nan: f64 = f64::NAN; | |
| 415 | let inf: f64 = f64::INFINITY; | |
| 416 | let neg_inf: f64 = f64::NEG_INFINITY; | |
| 417 | assert_eq!(1.0f64.powf(1.0), 1.0); | |
| 418 | assert_approx_eq!(3.4f64.powf(4.5), 246.408183); | |
| 419 | assert_approx_eq!(2.7f64.powf(-3.2), 0.041652); | |
| 420 | assert_approx_eq!((-3.1f64).powf(2.0), 9.61); | |
| 421 | assert_approx_eq!(5.9f64.powf(-2.0), 0.028727); | |
| 422 | assert_eq!(8.3f64.powf(0.0), 1.0); | |
| 423 | assert!(nan.powf(2.0).is_nan()); | |
| 424 | assert_eq!(inf.powf(2.0), inf); | |
| 425 | assert_eq!(neg_inf.powf(3.0), neg_inf); | |
| 426 | } | |
| 427 | ||
| 428 | #[test] | |
| 429 | fn test_sqrt_domain() { | |
| 430 | assert!(f64::NAN.sqrt().is_nan()); | |
| 431 | assert!(f64::NEG_INFINITY.sqrt().is_nan()); | |
| 432 | assert!((-1.0f64).sqrt().is_nan()); | |
| 433 | assert_eq!((-0.0f64).sqrt(), -0.0); | |
| 434 | assert_eq!(0.0f64.sqrt(), 0.0); | |
| 435 | assert_eq!(1.0f64.sqrt(), 1.0); | |
| 436 | assert_eq!(f64::INFINITY.sqrt(), f64::INFINITY); | |
| 437 | } | |
| 438 | ||
| 439 | #[test] | |
| 440 | fn test_exp() { | |
| 441 | assert_eq!(1.0, 0.0f64.exp()); | |
| 442 | assert_approx_eq!(2.718282, 1.0f64.exp()); | |
| 443 | assert_approx_eq!(148.413159, 5.0f64.exp()); | |
| 444 | ||
| 445 | let inf: f64 = f64::INFINITY; | |
| 446 | let neg_inf: f64 = f64::NEG_INFINITY; | |
| 447 | let nan: f64 = f64::NAN; | |
| 448 | assert_eq!(inf, inf.exp()); | |
| 449 | assert_eq!(0.0, neg_inf.exp()); | |
| 450 | assert!(nan.exp().is_nan()); | |
| 451 | } | |
| 452 | ||
| 453 | #[test] | |
| 454 | fn test_exp2() { | |
| 455 | assert_eq!(32.0, 5.0f64.exp2()); | |
| 456 | assert_eq!(1.0, 0.0f64.exp2()); | |
| 457 | ||
| 458 | let inf: f64 = f64::INFINITY; | |
| 459 | let neg_inf: f64 = f64::NEG_INFINITY; | |
| 460 | let nan: f64 = f64::NAN; | |
| 461 | assert_eq!(inf, inf.exp2()); | |
| 462 | assert_eq!(0.0, neg_inf.exp2()); | |
| 463 | assert!(nan.exp2().is_nan()); | |
| 464 | } | |
| 465 | ||
| 466 | #[test] | |
| 467 | fn test_ln() { | |
| 468 | let nan: f64 = f64::NAN; | |
| 469 | let inf: f64 = f64::INFINITY; | |
| 470 | let neg_inf: f64 = f64::NEG_INFINITY; | |
| 471 | assert_approx_eq!(1.0f64.exp().ln(), 1.0); | |
| 472 | assert!(nan.ln().is_nan()); | |
| 473 | assert_eq!(inf.ln(), inf); | |
| 474 | assert!(neg_inf.ln().is_nan()); | |
| 475 | assert!((-2.3f64).ln().is_nan()); | |
| 476 | assert_eq!((-0.0f64).ln(), neg_inf); | |
| 477 | assert_eq!(0.0f64.ln(), neg_inf); | |
| 478 | assert_approx_eq!(4.0f64.ln(), 1.386294); | |
| 479 | } | |
| 480 | ||
| 481 | #[test] | |
| 482 | fn test_log() { | |
| 483 | let nan: f64 = f64::NAN; | |
| 484 | let inf: f64 = f64::INFINITY; | |
| 485 | let neg_inf: f64 = f64::NEG_INFINITY; | |
| 486 | assert_eq!(10.0f64.log(10.0), 1.0); | |
| 487 | assert_approx_eq!(2.3f64.log(3.5), 0.664858); | |
| 488 | assert_eq!(1.0f64.exp().log(1.0f64.exp()), 1.0); | |
| 489 | assert!(1.0f64.log(1.0).is_nan()); | |
| 490 | assert!(1.0f64.log(-13.9).is_nan()); | |
| 491 | assert!(nan.log(2.3).is_nan()); | |
| 492 | assert_eq!(inf.log(10.0), inf); | |
| 493 | assert!(neg_inf.log(8.8).is_nan()); | |
| 494 | assert!((-2.3f64).log(0.1).is_nan()); | |
| 495 | assert_eq!((-0.0f64).log(2.0), neg_inf); | |
| 496 | assert_eq!(0.0f64.log(7.0), neg_inf); | |
| 497 | } | |
| 498 | ||
| 499 | #[test] | |
| 500 | fn test_log2() { | |
| 501 | let nan: f64 = f64::NAN; | |
| 502 | let inf: f64 = f64::INFINITY; | |
| 503 | let neg_inf: f64 = f64::NEG_INFINITY; | |
| 504 | assert_approx_eq!(10.0f64.log2(), 3.321928); | |
| 505 | assert_approx_eq!(2.3f64.log2(), 1.201634); | |
| 506 | assert_approx_eq!(1.0f64.exp().log2(), 1.442695); | |
| 507 | assert!(nan.log2().is_nan()); | |
| 508 | assert_eq!(inf.log2(), inf); | |
| 509 | assert!(neg_inf.log2().is_nan()); | |
| 510 | assert!((-2.3f64).log2().is_nan()); | |
| 511 | assert_eq!((-0.0f64).log2(), neg_inf); | |
| 512 | assert_eq!(0.0f64.log2(), neg_inf); | |
| 513 | } | |
| 514 | ||
| 515 | #[test] | |
| 516 | fn test_log10() { | |
| 517 | let nan: f64 = f64::NAN; | |
| 518 | let inf: f64 = f64::INFINITY; | |
| 519 | let neg_inf: f64 = f64::NEG_INFINITY; | |
| 520 | assert_eq!(10.0f64.log10(), 1.0); | |
| 521 | assert_approx_eq!(2.3f64.log10(), 0.361728); | |
| 522 | assert_approx_eq!(1.0f64.exp().log10(), 0.434294); | |
| 523 | assert_eq!(1.0f64.log10(), 0.0); | |
| 524 | assert!(nan.log10().is_nan()); | |
| 525 | assert_eq!(inf.log10(), inf); | |
| 526 | assert!(neg_inf.log10().is_nan()); | |
| 527 | assert!((-2.3f64).log10().is_nan()); | |
| 528 | assert_eq!((-0.0f64).log10(), neg_inf); | |
| 529 | assert_eq!(0.0f64.log10(), neg_inf); | |
| 530 | } | |
| 531 | ||
| 532 | #[test] | |
| 533 | fn test_to_degrees() { | |
| 534 | let pi: f64 = consts::PI; | |
| 535 | let nan: f64 = f64::NAN; | |
| 536 | let inf: f64 = f64::INFINITY; | |
| 537 | let neg_inf: f64 = f64::NEG_INFINITY; | |
| 538 | assert_eq!(0.0f64.to_degrees(), 0.0); | |
| 539 | assert_approx_eq!((-5.8f64).to_degrees(), -332.315521); | |
| 540 | assert_eq!(pi.to_degrees(), 180.0); | |
| 541 | assert!(nan.to_degrees().is_nan()); | |
| 542 | assert_eq!(inf.to_degrees(), inf); | |
| 543 | assert_eq!(neg_inf.to_degrees(), neg_inf); | |
| 544 | } | |
| 545 | ||
| 546 | #[test] | |
| 547 | fn test_to_radians() { | |
| 548 | let pi: f64 = consts::PI; | |
| 549 | let nan: f64 = f64::NAN; | |
| 550 | let inf: f64 = f64::INFINITY; | |
| 551 | let neg_inf: f64 = f64::NEG_INFINITY; | |
| 552 | assert_eq!(0.0f64.to_radians(), 0.0); | |
| 553 | assert_approx_eq!(154.6f64.to_radians(), 2.698279); | |
| 554 | assert_approx_eq!((-332.31f64).to_radians(), -5.799903); | |
| 555 | assert_eq!(180.0f64.to_radians(), pi); | |
| 556 | assert!(nan.to_radians().is_nan()); | |
| 557 | assert_eq!(inf.to_radians(), inf); | |
| 558 | assert_eq!(neg_inf.to_radians(), neg_inf); | |
| 559 | } | |
| 560 | ||
| 561 | #[test] | |
| 562 | fn test_asinh() { | |
| 563 | assert_eq!(0.0f64.asinh(), 0.0f64); | |
| 564 | assert_eq!((-0.0f64).asinh(), -0.0f64); | |
| 565 | ||
| 566 | let inf: f64 = f64::INFINITY; | |
| 567 | let neg_inf: f64 = f64::NEG_INFINITY; | |
| 568 | let nan: f64 = f64::NAN; | |
| 569 | assert_eq!(inf.asinh(), inf); | |
| 570 | assert_eq!(neg_inf.asinh(), neg_inf); | |
| 571 | assert!(nan.asinh().is_nan()); | |
| 572 | assert!((-0.0f64).asinh().is_sign_negative()); | |
| 573 | // issue 63271 | |
| 574 | assert_approx_eq!(2.0f64.asinh(), 1.443635475178810342493276740273105f64); | |
| 575 | assert_approx_eq!((-2.0f64).asinh(), -1.443635475178810342493276740273105f64); | |
| 576 | // regression test for the catastrophic cancellation fixed in 72486 | |
| 577 | assert_approx_eq!((-67452098.07139316f64).asinh(), -18.72007542627454439398548429400083); | |
| 487cf647 FG |
578 | |
| 579 | // test for low accuracy from issue 104548 | |
| 580 | assert_approx_eq!(60.0f64, 60.0f64.sinh().asinh()); | |
| 581 | // mul needed for approximate comparison to be meaningful | |
| 582 | assert_approx_eq!(1.0f64, 1e-15f64.sinh().asinh() * 1e15f64); | |
| 1b1a35ee XL |
583 | } |
| 584 | ||
| 585 | #[test] | |
| 586 | fn test_acosh() { | |
| 587 | assert_eq!(1.0f64.acosh(), 0.0f64); | |
| 588 | assert!(0.999f64.acosh().is_nan()); | |
| 589 | ||
| 590 | let inf: f64 = f64::INFINITY; | |
| 591 | let neg_inf: f64 = f64::NEG_INFINITY; | |
| 592 | let nan: f64 = f64::NAN; | |
| 593 | assert_eq!(inf.acosh(), inf); | |
| 594 | assert!(neg_inf.acosh().is_nan()); | |
| 595 | assert!(nan.acosh().is_nan()); | |
| 596 | assert_approx_eq!(2.0f64.acosh(), 1.31695789692481670862504634730796844f64); | |
| 597 | assert_approx_eq!(3.0f64.acosh(), 1.76274717403908605046521864995958461f64); | |
| 487cf647 FG |
598 | |
| 599 | // test for low accuracy from issue 104548 | |
| 600 | assert_approx_eq!(60.0f64, 60.0f64.cosh().acosh()); | |
| 1b1a35ee XL |
601 | } |
| 602 | ||
| 603 | #[test] | |
| 604 | fn test_atanh() { | |
| 605 | assert_eq!(0.0f64.atanh(), 0.0f64); | |
| 606 | assert_eq!((-0.0f64).atanh(), -0.0f64); | |
| 607 | ||
| 608 | let inf: f64 = f64::INFINITY; | |
| 609 | let neg_inf: f64 = f64::NEG_INFINITY; | |
| 610 | let nan: f64 = f64::NAN; | |
| 611 | assert_eq!(1.0f64.atanh(), inf); | |
| 612 | assert_eq!((-1.0f64).atanh(), neg_inf); | |
| 613 | assert!(2f64.atanh().atanh().is_nan()); | |
| 614 | assert!((-2f64).atanh().atanh().is_nan()); | |
| 615 | assert!(inf.atanh().is_nan()); | |
| 616 | assert!(neg_inf.atanh().is_nan()); | |
| 617 | assert!(nan.atanh().is_nan()); | |
| 618 | assert_approx_eq!(0.5f64.atanh(), 0.54930614433405484569762261846126285f64); | |
| 619 | assert_approx_eq!((-0.5f64).atanh(), -0.54930614433405484569762261846126285f64); | |
| 620 | } | |
| 621 | ||
| 622 | #[test] | |
| 623 | fn test_real_consts() { | |
| 624 | use super::consts; | |
| 625 | let pi: f64 = consts::PI; | |
| 626 | let frac_pi_2: f64 = consts::FRAC_PI_2; | |
| 627 | let frac_pi_3: f64 = consts::FRAC_PI_3; | |
| 628 | let frac_pi_4: f64 = consts::FRAC_PI_4; | |
| 629 | let frac_pi_6: f64 = consts::FRAC_PI_6; | |
| 630 | let frac_pi_8: f64 = consts::FRAC_PI_8; | |
| 631 | let frac_1_pi: f64 = consts::FRAC_1_PI; | |
| 632 | let frac_2_pi: f64 = consts::FRAC_2_PI; | |
| 633 | let frac_2_sqrtpi: f64 = consts::FRAC_2_SQRT_PI; | |
| 634 | let sqrt2: f64 = consts::SQRT_2; | |
| 635 | let frac_1_sqrt2: f64 = consts::FRAC_1_SQRT_2; | |
| 636 | let e: f64 = consts::E; | |
| 637 | let log2_e: f64 = consts::LOG2_E; | |
| 638 | let log10_e: f64 = consts::LOG10_E; | |
| 639 | let ln_2: f64 = consts::LN_2; | |
| 640 | let ln_10: f64 = consts::LN_10; | |
| 641 | ||
| 642 | assert_approx_eq!(frac_pi_2, pi / 2f64); | |
| 643 | assert_approx_eq!(frac_pi_3, pi / 3f64); | |
| 644 | assert_approx_eq!(frac_pi_4, pi / 4f64); | |
| 645 | assert_approx_eq!(frac_pi_6, pi / 6f64); | |
| 646 | assert_approx_eq!(frac_pi_8, pi / 8f64); | |
| 647 | assert_approx_eq!(frac_1_pi, 1f64 / pi); | |
| 648 | assert_approx_eq!(frac_2_pi, 2f64 / pi); | |
| 649 | assert_approx_eq!(frac_2_sqrtpi, 2f64 / pi.sqrt()); | |
| 650 | assert_approx_eq!(sqrt2, 2f64.sqrt()); | |
| 651 | assert_approx_eq!(frac_1_sqrt2, 1f64 / 2f64.sqrt()); | |
| 652 | assert_approx_eq!(log2_e, e.log2()); | |
| 653 | assert_approx_eq!(log10_e, e.log10()); | |
| 654 | assert_approx_eq!(ln_2, 2f64.ln()); | |
| 655 | assert_approx_eq!(ln_10, 10f64.ln()); | |
| 656 | } | |
| 657 | ||
| 658 | #[test] | |
| 659 | fn test_float_bits_conv() { | |
| 660 | assert_eq!((1f64).to_bits(), 0x3ff0000000000000); | |
| 661 | assert_eq!((12.5f64).to_bits(), 0x4029000000000000); | |
| 662 | assert_eq!((1337f64).to_bits(), 0x4094e40000000000); | |
| 663 | assert_eq!((-14.25f64).to_bits(), 0xc02c800000000000); | |
| 664 | assert_approx_eq!(f64::from_bits(0x3ff0000000000000), 1.0); | |
| 665 | assert_approx_eq!(f64::from_bits(0x4029000000000000), 12.5); | |
| 666 | assert_approx_eq!(f64::from_bits(0x4094e40000000000), 1337.0); | |
| 667 | assert_approx_eq!(f64::from_bits(0xc02c800000000000), -14.25); | |
| 668 | ||
| 669 | // Check that NaNs roundtrip their bits regardless of signaling-ness | |
| 670 | // 0xA is 0b1010; 0x5 is 0b0101 -- so these two together clobbers all the mantissa bits | |
| 671 | let masked_nan1 = f64::NAN.to_bits() ^ 0x000A_AAAA_AAAA_AAAA; | |
| 672 | let masked_nan2 = f64::NAN.to_bits() ^ 0x0005_5555_5555_5555; | |
| 673 | assert!(f64::from_bits(masked_nan1).is_nan()); | |
| 674 | assert!(f64::from_bits(masked_nan2).is_nan()); | |
| 675 | ||
| 676 | assert_eq!(f64::from_bits(masked_nan1).to_bits(), masked_nan1); | |
| 677 | assert_eq!(f64::from_bits(masked_nan2).to_bits(), masked_nan2); | |
| 678 | } | |
| 679 | ||
| 680 | #[test] | |
| 681 | #[should_panic] | |
| 682 | fn test_clamp_min_greater_than_max() { | |
| 683 | let _ = 1.0f64.clamp(3.0, 1.0); | |
| 684 | } | |
| 685 | ||
| 686 | #[test] | |
| 687 | #[should_panic] | |
| 688 | fn test_clamp_min_is_nan() { | |
| 689 | let _ = 1.0f64.clamp(f64::NAN, 1.0); | |
| 690 | } | |
| 691 | ||
| 692 | #[test] | |
| 693 | #[should_panic] | |
| 694 | fn test_clamp_max_is_nan() { | |
| 695 | let _ = 1.0f64.clamp(3.0, f64::NAN); | |
| 696 | } | |
| 697 | ||
| 698 | #[test] | |
| 699 | fn test_total_cmp() { | |
| 700 | use core::cmp::Ordering; | |
| 701 | ||
| 702 | fn quiet_bit_mask() -> u64 { | |
| 703 | 1 << (f64::MANTISSA_DIGITS - 2) | |
| 704 | } | |
| 705 | ||
| 706 | fn min_subnorm() -> f64 { | |
| 707 | f64::MIN_POSITIVE / f64::powf(2.0, f64::MANTISSA_DIGITS as f64 - 1.0) | |
| 708 | } | |
| 709 | ||
| 710 | fn max_subnorm() -> f64 { | |
| 711 | f64::MIN_POSITIVE - min_subnorm() | |
| 712 | } | |
| 713 | ||
| 714 | fn q_nan() -> f64 { | |
| 715 | f64::from_bits(f64::NAN.to_bits() | quiet_bit_mask()) | |
| 716 | } | |
| 717 | ||
| 718 | fn s_nan() -> f64 { | |
| 719 | f64::from_bits((f64::NAN.to_bits() & !quiet_bit_mask()) + 42) | |
| 720 | } | |
| 721 | ||
| 722 | assert_eq!(Ordering::Equal, (-q_nan()).total_cmp(&-q_nan())); | |
| 723 | assert_eq!(Ordering::Equal, (-s_nan()).total_cmp(&-s_nan())); | |
| 724 | assert_eq!(Ordering::Equal, (-f64::INFINITY).total_cmp(&-f64::INFINITY)); | |
| 725 | assert_eq!(Ordering::Equal, (-f64::MAX).total_cmp(&-f64::MAX)); | |
| 726 | assert_eq!(Ordering::Equal, (-2.5_f64).total_cmp(&-2.5)); | |
| 727 | assert_eq!(Ordering::Equal, (-1.0_f64).total_cmp(&-1.0)); | |
| 728 | assert_eq!(Ordering::Equal, (-1.5_f64).total_cmp(&-1.5)); | |
| 729 | assert_eq!(Ordering::Equal, (-0.5_f64).total_cmp(&-0.5)); | |
| 730 | assert_eq!(Ordering::Equal, (-f64::MIN_POSITIVE).total_cmp(&-f64::MIN_POSITIVE)); | |
| 731 | assert_eq!(Ordering::Equal, (-max_subnorm()).total_cmp(&-max_subnorm())); | |
| 732 | assert_eq!(Ordering::Equal, (-min_subnorm()).total_cmp(&-min_subnorm())); | |
| 733 | assert_eq!(Ordering::Equal, (-0.0_f64).total_cmp(&-0.0)); | |
| 734 | assert_eq!(Ordering::Equal, 0.0_f64.total_cmp(&0.0)); | |
| 735 | assert_eq!(Ordering::Equal, min_subnorm().total_cmp(&min_subnorm())); | |
| 736 | assert_eq!(Ordering::Equal, max_subnorm().total_cmp(&max_subnorm())); | |
| 737 | assert_eq!(Ordering::Equal, f64::MIN_POSITIVE.total_cmp(&f64::MIN_POSITIVE)); | |
| 738 | assert_eq!(Ordering::Equal, 0.5_f64.total_cmp(&0.5)); | |
| 739 | assert_eq!(Ordering::Equal, 1.0_f64.total_cmp(&1.0)); | |
| 740 | assert_eq!(Ordering::Equal, 1.5_f64.total_cmp(&1.5)); | |
| 741 | assert_eq!(Ordering::Equal, 2.5_f64.total_cmp(&2.5)); | |
| 742 | assert_eq!(Ordering::Equal, f64::MAX.total_cmp(&f64::MAX)); | |
| 743 | assert_eq!(Ordering::Equal, f64::INFINITY.total_cmp(&f64::INFINITY)); | |
| 744 | assert_eq!(Ordering::Equal, s_nan().total_cmp(&s_nan())); | |
| 745 | assert_eq!(Ordering::Equal, q_nan().total_cmp(&q_nan())); | |
| 746 | ||
| 747 | assert_eq!(Ordering::Less, (-q_nan()).total_cmp(&-s_nan())); | |
| 748 | assert_eq!(Ordering::Less, (-s_nan()).total_cmp(&-f64::INFINITY)); | |
| 749 | assert_eq!(Ordering::Less, (-f64::INFINITY).total_cmp(&-f64::MAX)); | |
| 750 | assert_eq!(Ordering::Less, (-f64::MAX).total_cmp(&-2.5)); | |
| 751 | assert_eq!(Ordering::Less, (-2.5_f64).total_cmp(&-1.5)); | |
| 752 | assert_eq!(Ordering::Less, (-1.5_f64).total_cmp(&-1.0)); | |
| 753 | assert_eq!(Ordering::Less, (-1.0_f64).total_cmp(&-0.5)); | |
| 754 | assert_eq!(Ordering::Less, (-0.5_f64).total_cmp(&-f64::MIN_POSITIVE)); | |
| 755 | assert_eq!(Ordering::Less, (-f64::MIN_POSITIVE).total_cmp(&-max_subnorm())); | |
| 756 | assert_eq!(Ordering::Less, (-max_subnorm()).total_cmp(&-min_subnorm())); | |
| 757 | assert_eq!(Ordering::Less, (-min_subnorm()).total_cmp(&-0.0)); | |
| 758 | assert_eq!(Ordering::Less, (-0.0_f64).total_cmp(&0.0)); | |
| 759 | assert_eq!(Ordering::Less, 0.0_f64.total_cmp(&min_subnorm())); | |
| 760 | assert_eq!(Ordering::Less, min_subnorm().total_cmp(&max_subnorm())); | |
| 761 | assert_eq!(Ordering::Less, max_subnorm().total_cmp(&f64::MIN_POSITIVE)); | |
| 762 | assert_eq!(Ordering::Less, f64::MIN_POSITIVE.total_cmp(&0.5)); | |
| 763 | assert_eq!(Ordering::Less, 0.5_f64.total_cmp(&1.0)); | |
| 764 | assert_eq!(Ordering::Less, 1.0_f64.total_cmp(&1.5)); | |
| 765 | assert_eq!(Ordering::Less, 1.5_f64.total_cmp(&2.5)); | |
| 766 | assert_eq!(Ordering::Less, 2.5_f64.total_cmp(&f64::MAX)); | |
| 767 | assert_eq!(Ordering::Less, f64::MAX.total_cmp(&f64::INFINITY)); | |
| 768 | assert_eq!(Ordering::Less, f64::INFINITY.total_cmp(&s_nan())); | |
| 769 | assert_eq!(Ordering::Less, s_nan().total_cmp(&q_nan())); | |
| 770 | ||
| 771 | assert_eq!(Ordering::Greater, (-s_nan()).total_cmp(&-q_nan())); | |
| 772 | assert_eq!(Ordering::Greater, (-f64::INFINITY).total_cmp(&-s_nan())); | |
| 773 | assert_eq!(Ordering::Greater, (-f64::MAX).total_cmp(&-f64::INFINITY)); | |
| 774 | assert_eq!(Ordering::Greater, (-2.5_f64).total_cmp(&-f64::MAX)); | |
| 775 | assert_eq!(Ordering::Greater, (-1.5_f64).total_cmp(&-2.5)); | |
| 776 | assert_eq!(Ordering::Greater, (-1.0_f64).total_cmp(&-1.5)); | |
| 777 | assert_eq!(Ordering::Greater, (-0.5_f64).total_cmp(&-1.0)); | |
| 778 | assert_eq!(Ordering::Greater, (-f64::MIN_POSITIVE).total_cmp(&-0.5)); | |
| 779 | assert_eq!(Ordering::Greater, (-max_subnorm()).total_cmp(&-f64::MIN_POSITIVE)); | |
| 780 | assert_eq!(Ordering::Greater, (-min_subnorm()).total_cmp(&-max_subnorm())); | |
| 781 | assert_eq!(Ordering::Greater, (-0.0_f64).total_cmp(&-min_subnorm())); | |
| 782 | assert_eq!(Ordering::Greater, 0.0_f64.total_cmp(&-0.0)); | |
| 783 | assert_eq!(Ordering::Greater, min_subnorm().total_cmp(&0.0)); | |
| 784 | assert_eq!(Ordering::Greater, max_subnorm().total_cmp(&min_subnorm())); | |
| 785 | assert_eq!(Ordering::Greater, f64::MIN_POSITIVE.total_cmp(&max_subnorm())); | |
| 786 | assert_eq!(Ordering::Greater, 0.5_f64.total_cmp(&f64::MIN_POSITIVE)); | |
| 787 | assert_eq!(Ordering::Greater, 1.0_f64.total_cmp(&0.5)); | |
| 788 | assert_eq!(Ordering::Greater, 1.5_f64.total_cmp(&1.0)); | |
| 789 | assert_eq!(Ordering::Greater, 2.5_f64.total_cmp(&1.5)); | |
| 790 | assert_eq!(Ordering::Greater, f64::MAX.total_cmp(&2.5)); | |
| 791 | assert_eq!(Ordering::Greater, f64::INFINITY.total_cmp(&f64::MAX)); | |
| 792 | assert_eq!(Ordering::Greater, s_nan().total_cmp(&f64::INFINITY)); | |
| 793 | assert_eq!(Ordering::Greater, q_nan().total_cmp(&s_nan())); | |
| 794 | ||
| 795 | assert_eq!(Ordering::Less, (-q_nan()).total_cmp(&-s_nan())); | |
| 796 | assert_eq!(Ordering::Less, (-q_nan()).total_cmp(&-f64::INFINITY)); | |
| 797 | assert_eq!(Ordering::Less, (-q_nan()).total_cmp(&-f64::MAX)); | |
| 798 | assert_eq!(Ordering::Less, (-q_nan()).total_cmp(&-2.5)); | |
| 799 | assert_eq!(Ordering::Less, (-q_nan()).total_cmp(&-1.5)); | |
| 800 | assert_eq!(Ordering::Less, (-q_nan()).total_cmp(&-1.0)); | |
| 801 | assert_eq!(Ordering::Less, (-q_nan()).total_cmp(&-0.5)); | |
| 802 | assert_eq!(Ordering::Less, (-q_nan()).total_cmp(&-f64::MIN_POSITIVE)); | |
| 803 | assert_eq!(Ordering::Less, (-q_nan()).total_cmp(&-max_subnorm())); | |
| 804 | assert_eq!(Ordering::Less, (-q_nan()).total_cmp(&-min_subnorm())); | |
| 805 | assert_eq!(Ordering::Less, (-q_nan()).total_cmp(&-0.0)); | |
| 806 | assert_eq!(Ordering::Less, (-q_nan()).total_cmp(&0.0)); | |
| 807 | assert_eq!(Ordering::Less, (-q_nan()).total_cmp(&min_subnorm())); | |
| 808 | assert_eq!(Ordering::Less, (-q_nan()).total_cmp(&max_subnorm())); | |
| 809 | assert_eq!(Ordering::Less, (-q_nan()).total_cmp(&f64::MIN_POSITIVE)); | |
| 810 | assert_eq!(Ordering::Less, (-q_nan()).total_cmp(&0.5)); | |
| 811 | assert_eq!(Ordering::Less, (-q_nan()).total_cmp(&1.0)); | |
| 812 | assert_eq!(Ordering::Less, (-q_nan()).total_cmp(&1.5)); | |
| 813 | assert_eq!(Ordering::Less, (-q_nan()).total_cmp(&2.5)); | |
| 814 | assert_eq!(Ordering::Less, (-q_nan()).total_cmp(&f64::MAX)); | |
| 815 | assert_eq!(Ordering::Less, (-q_nan()).total_cmp(&f64::INFINITY)); | |
| 816 | assert_eq!(Ordering::Less, (-q_nan()).total_cmp(&s_nan())); | |
| 817 | ||
| 818 | assert_eq!(Ordering::Less, (-s_nan()).total_cmp(&-f64::INFINITY)); | |
| 819 | assert_eq!(Ordering::Less, (-s_nan()).total_cmp(&-f64::MAX)); | |
| 820 | assert_eq!(Ordering::Less, (-s_nan()).total_cmp(&-2.5)); | |
| 821 | assert_eq!(Ordering::Less, (-s_nan()).total_cmp(&-1.5)); | |
| 822 | assert_eq!(Ordering::Less, (-s_nan()).total_cmp(&-1.0)); | |
| 823 | assert_eq!(Ordering::Less, (-s_nan()).total_cmp(&-0.5)); | |
| 824 | assert_eq!(Ordering::Less, (-s_nan()).total_cmp(&-f64::MIN_POSITIVE)); | |
| 825 | assert_eq!(Ordering::Less, (-s_nan()).total_cmp(&-max_subnorm())); | |
| 826 | assert_eq!(Ordering::Less, (-s_nan()).total_cmp(&-min_subnorm())); | |
| 827 | assert_eq!(Ordering::Less, (-s_nan()).total_cmp(&-0.0)); | |
| 828 | assert_eq!(Ordering::Less, (-s_nan()).total_cmp(&0.0)); | |
| 829 | assert_eq!(Ordering::Less, (-s_nan()).total_cmp(&min_subnorm())); | |
| 830 | assert_eq!(Ordering::Less, (-s_nan()).total_cmp(&max_subnorm())); | |
| 831 | assert_eq!(Ordering::Less, (-s_nan()).total_cmp(&f64::MIN_POSITIVE)); | |
| 832 | assert_eq!(Ordering::Less, (-s_nan()).total_cmp(&0.5)); | |
| 833 | assert_eq!(Ordering::Less, (-s_nan()).total_cmp(&1.0)); | |
| 834 | assert_eq!(Ordering::Less, (-s_nan()).total_cmp(&1.5)); | |
| 835 | assert_eq!(Ordering::Less, (-s_nan()).total_cmp(&2.5)); | |
| 836 | assert_eq!(Ordering::Less, (-s_nan()).total_cmp(&f64::MAX)); | |
| 837 | assert_eq!(Ordering::Less, (-s_nan()).total_cmp(&f64::INFINITY)); | |
| 838 | assert_eq!(Ordering::Less, (-s_nan()).total_cmp(&s_nan())); | |
| 839 | } |