diff options
Diffstat (limited to 'src/libcore/num/mod.rs')
| -rw-r--r-- | src/libcore/num/mod.rs | 38 |
1 files changed, 36 insertions, 2 deletions
diff --git a/src/libcore/num/mod.rs b/src/libcore/num/mod.rs index fdff49b1a57..e1e5c01adb7 100644 --- a/src/libcore/num/mod.rs +++ b/src/libcore/num/mod.rs @@ -1748,62 +1748,96 @@ pub enum FpCategory { issue = "27702")] pub trait Float: Sized { /// Returns the NaN value. + #[unstable(feature = "float_extras", reason = "needs removal", + issue = "27752")] fn nan() -> Self; /// Returns the infinite value. + #[unstable(feature = "float_extras", reason = "needs removal", + issue = "27752")] fn infinity() -> Self; /// Returns the negative infinite value. + #[unstable(feature = "float_extras", reason = "needs removal", + issue = "27752")] fn neg_infinity() -> Self; /// Returns -0.0. + #[unstable(feature = "float_extras", reason = "needs removal", + issue = "27752")] fn neg_zero() -> Self; /// Returns 0.0. + #[unstable(feature = "float_extras", reason = "needs removal", + issue = "27752")] fn zero() -> Self; /// Returns 1.0. + #[unstable(feature = "float_extras", reason = "needs removal", + issue = "27752")] fn one() -> Self; /// Parses the string `s` with the radix `r` as a float. + #[unstable(feature = "float_from_str_radix", reason = "recently moved API", + issue = "27736")] + #[rustc_deprecated(since = "1.4.0", + reason = "unclear how useful or correct this is")] fn from_str_radix(s: &str, r: u32) -> Result<Self, ParseFloatError>; /// Returns true if this value is NaN and false otherwise. + #[stable(feature = "core", since = "1.6.0")] fn is_nan(self) -> bool; /// Returns true if this value is positive infinity or negative infinity and /// false otherwise. + #[stable(feature = "core", since = "1.6.0")] fn is_infinite(self) -> bool; /// Returns true if this number is neither infinite nor NaN. + #[stable(feature = "core", since = "1.6.0")] fn is_finite(self) -> bool; /// Returns true if this number is neither zero, infinite, denormal, or NaN. + #[stable(feature = "core", since = "1.6.0")] fn is_normal(self) -> bool; /// Returns the category that this number falls into. + #[stable(feature = "core", since = "1.6.0")] fn classify(self) -> FpCategory; /// Returns the mantissa, exponent and sign as integers, respectively. + #[unstable(feature = "float_extras", reason = "signature is undecided", + issue = "27752")] fn integer_decode(self) -> (u64, i16, i8); /// Computes the absolute value of `self`. Returns `Float::nan()` if the /// number is `Float::nan()`. + #[stable(feature = "core", since = "1.6.0")] fn abs(self) -> Self; /// Returns a number that represents the sign of `self`. /// /// - `1.0` if the number is positive, `+0.0` or `Float::infinity()` /// - `-1.0` if the number is negative, `-0.0` or `Float::neg_infinity()` /// - `Float::nan()` if the number is `Float::nan()` + #[stable(feature = "core", since = "1.6.0")] fn signum(self) -> Self; + /// Returns `true` if `self` is positive, including `+0.0` and /// `Float::infinity()`. - fn is_positive(self) -> bool; + #[stable(feature = "core", since = "1.6.0")] + fn is_sign_positive(self) -> bool; /// Returns `true` if `self` is negative, including `-0.0` and /// `Float::neg_infinity()`. - fn is_negative(self) -> bool; + #[stable(feature = "core", since = "1.6.0")] + fn is_sign_negative(self) -> bool; /// Take the reciprocal (inverse) of a number, `1/x`. + #[stable(feature = "core", since = "1.6.0")] fn recip(self) -> Self; /// Raise a number to an integer power. /// /// Using this function is generally faster than using `powf` + #[stable(feature = "core", since = "1.6.0")] fn powi(self, n: i32) -> Self; /// Convert radians to degrees. + #[unstable(feature = "float_extras", reason = "desirability is unclear", + issue = "27752")] fn to_degrees(self) -> Self; /// Convert degrees to radians. + #[unstable(feature = "float_extras", reason = "desirability is unclear", + issue = "27752")] fn to_radians(self) -> Self; } |