mod.rs - source
Description: Source of the Rust file `/Users/erlendbasso/.cargo/registry/src/github.com-1ecc6299db9ec823/libm-0.2.6/src/math/mod.rs`.
Keywords: rust, rustlang, rust-lang

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    30
    31
    32
    33
    34
    35
    36
    37
    38
    39
    40
    41
    42
    43
    44
    45
    46
    47
    48
    49
    50
    51
    52
    53
    54
    55
    56
    57
    58
    59
    60
    61
    62
    63
    64
    65
    66
    67
    68
    69
    70
    71
    72
    73
    74
    75
    76
    77
    78
    79
    80
    81
    82
    83
    84
    85
    86
    87
    88
    89
    90
    91
    92
    93
    94
    95
    96
    97
    98
    99
    100
    101
    102
    103
    104
    105
    106
    107
    108
    109
    110
    111
    112
    113
    114
    115
    116
    117
    118
    119
    120
    121
    122
    123
    124
    125
    126
    127
    128
    129
    130
    131
    132
    133
    134
    135
    136
    137
    138
    139
    140
    141
    142
    143
    144
    145
    146
    147
    148
    149
    150
    151
    152
    153
    154
    155
    156
    157
    158
    159
    160
    161
    162
    163
    164
    165
    166
    167
    168
    169
    170
    171
    172
    173
    174
    175
    176
    177
    178
    179
    180
    181
    182
    183
    184
    185
    186
    187
    188
    189
    190
    191
    192
    193
    194
    195
    196
    197
    198
    199
    200
    201
    202
    203
    204
    205
    206
    207
    208
    209
    210
    211
    212
    213
    214
    215
    216
    217
    218
    219
    220
    221
    222
    223
    224
    225
    226
    227
    228
    229
    230
    231
    232
    233
    234
    235
    236
    237
    238
    239
    240
    241
    242
    243
    244
    245
    246
    247
    248
    249
    250
    251
    252
    253
    254
    255
    256
    257
    258
    259
    260
    261
    262
    263
    264
    265
    266
    267
    268
    269
    270
    271
    272
    273
    274
    275
    276
    277
    278
    279
    280
    281
    282
    283
    284
    285
    286
    287
    288
    289
    290
    291
    292
    293
    294
    295
    296
    297
    298
    299
    300
    301
    302
    303
    304
    305
    306
    307
    308
    309
    310
    311
    312
    313
    314
    315
    316
    317
    318
    319
    320
    321
    322
    323
    324
    325
    326
    327
    328
    329
    330
    331
    332
    333
    334
    335
    336
    337
    338
    339
    340
    341
    342
    343
    344
    345
    346
    347
    348
    349
    350
    351
    352
    353
    354
    355
    356
    357
    358
    359
    360
    361
    362
    363
    364
    365
    366
    367
    368
    369
    370

    macro_rules! force_eval {
        ($e:expr) => {
            unsafe { ::core::ptr::read_volatile(&$e) }
        };
    }

    #[cfg(not(debug_assertions))]
    macro_rules! i {
        ($array:expr, $index:expr) => {
            unsafe { *$array.get_unchecked($index) }
        };
        ($array:expr, $index:expr, = , $rhs:expr) => {
            unsafe {
                *$array.get_unchecked_mut($index) = $rhs;
            }
        };
        ($array:expr, $index:expr, += , $rhs:expr) => {
            unsafe {
                *$array.get_unchecked_mut($index) += $rhs;
            }
        };
        ($array:expr, $index:expr, -= , $rhs:expr) => {
            unsafe {
                *$array.get_unchecked_mut($index) -= $rhs;
            }
        };
        ($array:expr, $index:expr, &= , $rhs:expr) => {
            unsafe {
                *$array.get_unchecked_mut($index) &= $rhs;
            }
        };
        ($array:expr, $index:expr, == , $rhs:expr) => {
            unsafe { *$array.get_unchecked_mut($index) == $rhs }
        };
    }

    #[cfg(debug_assertions)]
    macro_rules! i {
        ($array:expr, $index:expr) => {
            *$array.get($index).unwrap()
        };
        ($array:expr, $index:expr, = , $rhs:expr) => {
            *$array.get_mut($index).unwrap() = $rhs;
        };
        ($array:expr, $index:expr, -= , $rhs:expr) => {
            *$array.get_mut($index).unwrap() -= $rhs;
        };
        ($array:expr, $index:expr, += , $rhs:expr) => {
            *$array.get_mut($index).unwrap() += $rhs;
        };
        ($array:expr, $index:expr, &= , $rhs:expr) => {
            *$array.get_mut($index).unwrap() &= $rhs;
        };
        ($array:expr, $index:expr, == , $rhs:expr) => {
            *$array.get_mut($index).unwrap() == $rhs
        };
    }

    // Temporary macro to avoid panic codegen for division (in debug mode too). At
    // the time of this writing this is only used in a few places, and once
    // rust-lang/rust#72751 is fixed then this macro will no longer be necessary and
    // the native `/` operator can be used and panics won't be codegen'd.
    #[cfg(any(debug_assertions, not(feature = "unstable")))]
    macro_rules! div {
        ($a:expr, $b:expr) => {
            $a / $b
        };
    }

    #[cfg(all(not(debug_assertions), feature = "unstable"))]
    macro_rules! div {
        ($a:expr, $b:expr) => {
            unsafe { core::intrinsics::unchecked_div($a, $b) }
        };
    }

    macro_rules! llvm_intrinsically_optimized {
        (#[cfg($($clause:tt)*)] $e:expr) => {
            #[cfg(all(feature = "unstable", $($clause)*))]
            {
                if true { // thwart the dead code lint
                    $e
                }
            }
        };
    }

    // Public modules
    mod acos;
    mod acosf;
    mod acosh;
    mod acoshf;
    mod asin;
    mod asinf;
    mod asinh;
    mod asinhf;
    mod atan;
    mod atan2;
    mod atan2f;
    mod atanf;
    mod atanh;
    mod atanhf;
    mod cbrt;
    mod cbrtf;
    mod ceil;
    mod ceilf;
    mod copysign;
    mod copysignf;
    mod cos;
    mod cosf;
    mod cosh;
    mod coshf;
    mod erf;
    mod erff;
    mod exp;
    mod exp10;
    mod exp10f;
    mod exp2;
    mod exp2f;
    mod expf;
    mod expm1;
    mod expm1f;
    mod fabs;
    mod fabsf;
    mod fdim;
    mod fdimf;
    mod floor;
    mod floorf;
    mod fma;
    mod fmaf;
    mod fmax;
    mod fmaxf;
    mod fmin;
    mod fminf;
    mod fmod;
    mod fmodf;
    mod frexp;
    mod frexpf;
    mod hypot;
    mod hypotf;
    mod ilogb;
    mod ilogbf;
    mod j0;
    mod j0f;
    mod j1;
    mod j1f;
    mod jn;
    mod jnf;
    mod ldexp;
    mod ldexpf;
    mod lgamma;
    mod lgamma_r;
    mod lgammaf;
    mod lgammaf_r;
    mod log;
    mod log10;
    mod log10f;
    mod log1p;
    mod log1pf;
    mod log2;
    mod log2f;
    mod logf;
    mod modf;
    mod modff;
    mod nextafter;
    mod nextafterf;
    mod pow;
    mod powf;
    mod remainder;
    mod remainderf;
    mod remquo;
    mod remquof;
    mod rint;
    mod rintf;
    mod round;
    mod roundf;
    mod scalbn;
    mod scalbnf;
    mod sin;
    mod sincos;
    mod sincosf;
    mod sinf;
    mod sinh;
    mod sinhf;
    mod sqrt;
    mod sqrtf;
    mod tan;
    mod tanf;
    mod tanh;
    mod tanhf;
    mod tgamma;
    mod tgammaf;
    mod trunc;
    mod truncf;

    // Use separated imports instead of {}-grouped imports for easier merging.
    pub use self::acos::acos;
    pub use self::acosf::acosf;
    pub use self::acosh::acosh;
    pub use self::acoshf::acoshf;
    pub use self::asin::asin;
    pub use self::asinf::asinf;
    pub use self::asinh::asinh;
    pub use self::asinhf::asinhf;
    pub use self::atan::atan;
    pub use self::atan2::atan2;
    pub use self::atan2f::atan2f;
    pub use self::atanf::atanf;
    pub use self::atanh::atanh;
    pub use self::atanhf::atanhf;
    pub use self::cbrt::cbrt;
    pub use self::cbrtf::cbrtf;
    pub use self::ceil::ceil;
    pub use self::ceilf::ceilf;
    pub use self::copysign::copysign;
    pub use self::copysignf::copysignf;
    pub use self::cos::cos;
    pub use self::cosf::cosf;
    pub use self::cosh::cosh;
    pub use self::coshf::coshf;
    pub use self::erf::erf;
    pub use self::erf::erfc;
    pub use self::erff::erfcf;
    pub use self::erff::erff;
    pub use self::exp::exp;
    pub use self::exp10::exp10;
    pub use self::exp10f::exp10f;
    pub use self::exp2::exp2;
    pub use self::exp2f::exp2f;
    pub use self::expf::expf;
    pub use self::expm1::expm1;
    pub use self::expm1f::expm1f;
    pub use self::fabs::fabs;
    pub use self::fabsf::fabsf;
    pub use self::fdim::fdim;
    pub use self::fdimf::fdimf;
    pub use self::floor::floor;
    pub use self::floorf::floorf;
    pub use self::fma::fma;
    pub use self::fmaf::fmaf;
    pub use self::fmax::fmax;
    pub use self::fmaxf::fmaxf;
    pub use self::fmin::fmin;
    pub use self::fminf::fminf;
    pub use self::fmod::fmod;
    pub use self::fmodf::fmodf;
    pub use self::frexp::frexp;
    pub use self::frexpf::frexpf;
    pub use self::hypot::hypot;
    pub use self::hypotf::hypotf;
    pub use self::ilogb::ilogb;
    pub use self::ilogbf::ilogbf;
    pub use self::j0::j0;
    pub use self::j0::y0;
    pub use self::j0f::j0f;
    pub use self::j0f::y0f;
    pub use self::j1::j1;
    pub use self::j1::y1;
    pub use self::j1f::j1f;
    pub use self::j1f::y1f;
    pub use self::jn::jn;
    pub use self::jn::yn;
    pub use self::jnf::jnf;
    pub use self::jnf::ynf;
    pub use self::ldexp::ldexp;
    pub use self::ldexpf::ldexpf;
    pub use self::lgamma::lgamma;
    pub use self::lgamma_r::lgamma_r;
    pub use self::lgammaf::lgammaf;
    pub use self::lgammaf_r::lgammaf_r;
    pub use self::log::log;
    pub use self::log10::log10;
    pub use self::log10f::log10f;
    pub use self::log1p::log1p;
    pub use self::log1pf::log1pf;
    pub use self::log2::log2;
    pub use self::log2f::log2f;
    pub use self::logf::logf;
    pub use self::modf::modf;
    pub use self::modff::modff;
    pub use self::nextafter::nextafter;
    pub use self::nextafterf::nextafterf;
    pub use self::pow::pow;
    pub use self::powf::powf;
    pub use self::remainder::remainder;
    pub use self::remainderf::remainderf;
    pub use self::remquo::remquo;
    pub use self::remquof::remquof;
    pub use self::rint::rint;
    pub use self::rintf::rintf;
    pub use self::round::round;
    pub use self::roundf::roundf;
    pub use self::scalbn::scalbn;
    pub use self::scalbnf::scalbnf;
    pub use self::sin::sin;
    pub use self::sincos::sincos;
    pub use self::sincosf::sincosf;
    pub use self::sinf::sinf;
    pub use self::sinh::sinh;
    pub use self::sinhf::sinhf;
    pub use self::sqrt::sqrt;
    pub use self::sqrtf::sqrtf;
    pub use self::tan::tan;
    pub use self::tanf::tanf;
    pub use self::tanh::tanh;
    pub use self::tanhf::tanhf;
    pub use self::tgamma::tgamma;
    pub use self::tgammaf::tgammaf;
    pub use self::trunc::trunc;
    pub use self::truncf::truncf;

    // Private modules
    mod expo2;
    mod fenv;
    mod k_cos;
    mod k_cosf;
    mod k_expo2;
    mod k_expo2f;
    mod k_sin;
    mod k_sinf;
    mod k_tan;
    mod k_tanf;
    mod rem_pio2;
    mod rem_pio2_large;
    mod rem_pio2f;

    // Private re-imports
    use self::expo2::expo2;
    use self::k_cos::k_cos;
    use self::k_cosf::k_cosf;
    use self::k_expo2::k_expo2;
    use self::k_expo2f::k_expo2f;
    use self::k_sin::k_sin;
    use self::k_sinf::k_sinf;
    use self::k_tan::k_tan;
    use self::k_tanf::k_tanf;
    use self::rem_pio2::rem_pio2;
    use self::rem_pio2_large::rem_pio2_large;
    use self::rem_pio2f::rem_pio2f;

    #[inline]
    fn get_high_word(x: f64) -> u32 {
        (x.to_bits() >> 32) as u32
    }

    #[inline]
    fn get_low_word(x: f64) -> u32 {
        x.to_bits() as u32
    }

    #[inline]
    fn with_set_high_word(f: f64, hi: u32) -> f64 {
        let mut tmp = f.to_bits();
        tmp &= 0x00000000_ffffffff;
        tmp |= (hi as u64) << 32;
        f64::from_bits(tmp)
    }

    #[inline]
    fn with_set_low_word(f: f64, lo: u32) -> f64 {
        let mut tmp = f.to_bits();
        tmp &= 0xffffffff_00000000;
        tmp |= lo as u64;
        f64::from_bits(tmp)
    }

    #[inline]
    fn combine_words(hi: u32, lo: u32) -> f64 {
        f64::from_bits((hi as u64) << 32 | lo as u64)
    }