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path: root/src/libstd/f32.rs
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2020-05-23Correct small typo: 'not' -> 'note'Jake Goulding-1/+1
2020-04-20Use assoc float consts instead of module levelLinus Färnstrand-4/+4
2020-04-05Remove more std::f32 imports in libstdLinus Färnstrand-39/+15
2020-04-05Stop importing the float modules. Use assoc constsLinus Färnstrand-42/+0
2020-04-03Replace float module consts with assoc consts in documentationLinus Färnstrand-2/+2
2020-02-12Add notice about using new consts in new code on float modulesLinus Färnstrand-0/+3
2020-01-16Rollup merge of #68033 - ollie27:win_f32, r=dtolnayDylan DPC-52/+8
Don't use f64 shims for f32 cmath functions on non 32-bit x86 MSVC These shims are only needed on 32-bit x86. Additionally since https://reviews.llvm.org/rL268875 LLVM handles adding the shims itself for the intrinsics.
2020-01-16Rollup merge of #68266 - Stromberg90:patch-2, r=Dylan-DPCDylan DPC-2/+2
Changed docs for f32 and f64.
2020-01-16Update f32.rsStrømberg-1/+1
2020-01-16Update f32.rsStrømberg-1/+1
2020-01-15Use 3.6 instead of 3.5 in float fract() documentationSOFe-4/+4
It is not self-explanatory whether the fract() function inverts the fractional part of negative numbers. Co-Authored-By: Mateusz Mikuła <mati865@users.noreply.github.com>
2020-01-08Don't use f64 shims for f32 cmath functions on none 32-bit x86 MSVCOliver Middleton-52/+8
These shims are only needed on 32-bit x86. Additionally since https://reviews.llvm.org/rL268875 LLVM handles adding the shims itself for the intrinsics.
2020-01-04Remove negative number check from float sqrtOliver Middleton-1/+1
It hasn't been UB to pass negative numbers to sqrt since https://reviews.llvm.org/D28797 which was included in LLVM 5.
2019-11-29Format libstd with rustfmtDavid Tolnay-45/+37
This commit applies rustfmt with rust-lang/rust's default settings to files in src/libstd *that are not involved in any currently open PR* to minimize merge conflicts. THe list of files involved in open PRs was determined by querying GitHub's GraphQL API with this script: https://gist.github.com/dtolnay/aa9c34993dc051a4f344d1b10e4487e8 With the list of files from the script in outstanding_files, the relevant commands were: $ find src/libstd -name '*.rs' \ | xargs rustfmt --edition=2018 --unstable-features --skip-children $ rg libstd outstanding_files | xargs git checkout -- Repeating this process several months apart should get us coverage of most of the rest of libstd. To confirm no funny business: $ git checkout $THIS_COMMIT^ $ git show --pretty= --name-only $THIS_COMMIT \ | xargs rustfmt --edition=2018 --unstable-features --skip-children $ git diff $THIS_COMMIT # there should be no difference
2019-11-09Auto merge of #63871 - BatmanAoD:FloatFnMustUse, r=withoutboatsbors-4/+42
Add #[must_use] to all functions 'fn(float) -> float' These are pure functions. ```rust impl f32/f64 { fn floor(self) -> Self; fn ceil(self) -> Self; fn round(self) -> Self; fn trunc(self) -> Self; fn fract(self) -> Self; fn abs(self) -> Self; fn signum(self) -> Self; fn mul_add(self, a: Self, b: Self) -> Self; fn div_euclid(self, rhs: Self) -> Self; fn rem_euclid(self, rhs: Self) -> Self; fn powi(self, n: i32) -> Self; fn powf(self, n: Self) -> Self; fn sqrt(self) -> Self; fn exp(self) -> Self; fn exp2(self) -> Self; fn ln(self) -> Self; fn log(self, base: Self) -> Self; fn log2(self) -> Self; fn log10(self) -> Self; fn abs_sub(self, other: Self) -> Self; fn cbrt(self) -> Self; fn hypot(self, other: Self) -> Self; fn sin(self) -> Self; fn cos(self) -> Self; fn tan(self) -> Self; fn asin(self) -> Self; fn acos(self) -> Self; fn atan(self) -> Self; fn atan2(self, other: Self) -> Self; fn exp_m1(self) -> Self; fn ln_1p(self) -> Self; fn sinh(self) -> Self; fn cosh(self) -> Self; fn tanh(self) -> Self; fn asinh(self) -> Self; fn acosh(self) -> Self; fn atanh(self) -> Self; fn clamp(self, min: Self, max: Self) -> Self; } ``` Part of #48926
2019-09-05Restore 'must_use' for 'clamp'; fix warning for testsKyle Strand-5/+4
2019-08-28Let 'clamp' be invoked without using return value; used in testsKyle Strand-1/+2
2019-08-28Annotate functions taking extra argsKyle Strand-1/+11
2019-08-28Add reason for each 'must_use'Kyle Strand-29/+29
2019-08-27Rollup merge of #63698 - Phosphorus15:master, r=nagisaMazdak Farrokhzad-4/+6
Fixed floating point issue with asinh function This should fixes #63271 , in which `asinh(-0.0)` returns `0.0` instead of `-0.0`. according to @nagisa > > > IEEE-754 (2008), section 9.2.1: > > > For the functions expm1, exp2m1, exp10m1, logp1, log2p1, log10p1, sin, tan, sinPi, atanPi, asin, atan, sinh, tanh, asinh, and atanh, f(+0) is +0 and f(−0) is −0 with no exception. > > and > > > sinh(±∞) and asinh(±∞) are ±∞ with no exception. After ensuring that the function `asinh` is the only function affected (functions like `sin`, `sinh` are all based on `cmath` library or `llvm` intrinsics), and that `atanh` always gives the correct result. The only function to modify is `asinh`.
2019-08-24Add 'must_use' to all functions 'fn(float) -> float'Kyle Strand-0/+28
2019-08-22Make use of existing constants.Tomasz Różański-10/+9
f32::consts::PI / 2.0 -> f32::consts::FRAC_PI_2 f32::consts::PI / 4.0 -> f32::consts::FRAC_PI_4 f64::consts::PI / 2.0 -> f64::consts::FRAC_PI_2 f64::consts::PI / 4.0 -> f64::consts::FRAC_PI_4
2019-08-22Change code formatting for readability.Tomasz Różański-9/+9
2019-08-20Refined implementations of `asinh` and `acosh`Phosphorus15-6/+8
2019-08-20Used `copysign` to avoid unnecessary branches.Phosphorus15-9/+1
2019-08-19test cases for both `f32` and `f64` on asinh(-0.0)Phosphorus15-0/+1
2019-08-19Added negative cases for `asinh` according to IEEE-754.Phosphorus15-4/+11
2019-07-07Stablize Euclidean Modulo (feature euclidean_division)CrLF0710-4/+2
2019-06-08Use stable wrappersYuki Okushi-1/+1
2019-04-05Change `copytest` parameter name from `y` to `sign`Will Hakes-5/+5
2019-03-29Stablize {f32,f64}::copysign().CrLF0710-2/+1
2019-03-25Clarify `{Ord,f32,f64}::clamp` docs a littleTobias Bucher-6/+16
Explicitly call out when it returns NaN, adhere to the panic doc guidelines.
2019-03-20Fix formatting and add unit tests for panic casesJacob Kiesel-1/+19
2019-03-20Add NAN test to docsJacob Kiesel-0/+1
2019-03-19Rollup merge of #58812 - jonhoo:floor_v_trunc, r=alexcrichtonMazdak Farrokhzad-4/+8
Clarify distinction between floor() and trunc() `floor()` rounds towards `-INF`, `trunc()` rounds towards 0. This PR clarifies this in the examples.
2019-03-15Auto merge of #58710 - EdorianDark:master, r=sfacklerbors-0/+21
Add clamp for ranges. Implements #44095 Ready for merge
2019-03-09add feature clampDirk Leifeld-0/+1
2019-03-09Revert "Revert "Add clamp functions""Dirk Leifeld-0/+20
2019-02-28Clarify distinction between floor() and trunc()Jon Gjengset-4/+8
2019-02-28libstd => 2018Taiki Endo-8/+8
2018-12-25Remove licensesMark Rousskov-10/+0
2018-12-17rename div_euc -> div_euclid, and mod_euc -> rem_euclidNicole Mazzuca-15/+15
logic is written up in https://github.com/rust-lang/rust/issues/49048 Also, update the documentation slightly
2018-12-15Fix a small mistake regarding NaNs in a deprecation messageTobias Bucher-1/+2
`max` on floats returns the other argument if one of them is NaN, which would be `0.0` in this case. This is unlike the C functions `fdim` and `fdimf` which return NaN if either of their arguments is NaN. https://doc.rust-lang.org/1.31.0/std/primitive.f32.html#method.max https://en.cppreference.com/w/c/numeric/math/fdim
2018-10-24Fix doc for new copysign functionsRaph Levien-4/+4
Thanks to @LukasKalbertodt for catching this. Addresses a comment raised in #55169 after it was merged.
2018-10-18Add must_use on copysignRaph Levien-0/+1
Added a #[must_use] annotation on copysign, per review feedback.
2018-10-17Fix inconsistent documentationRaph Levien-1/+1
I improved the f32 version and made a copy-paste error for f64.
2018-10-17Add a `copysign` function to f32 and f64Raph Levien-0/+28
This patch adds a `copysign` function to the float primitive types. It is an exceptionally useful function for writing efficient numeric code, as it often avoids branches, is auto-vectorizable, and there are efficient intrinsics for most platforms. I think this might work as-is, as the relevant `copysign` intrinsic is already used internally for the implementation of `signum`. It's possible that an implementation might be needed in japaric/libm for portability across all platforms, in which case I'll do that also. Part of the work towards #55107
2018-06-26Clarify rational behind current implementation of `.mod_euc()`Fabian Kössel-0/+4
2018-06-26Document round-off error in `.mod_euc()`-method, see issue #50179Fabian Kössel-1/+6
2018-05-17Switch to 1.26 bootstrap compilerMark Simulacrum-11/+1
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