}
}
-// FIXME(#11621): These constants should be deprecated once CTFE is implemented
-// in favour of calling their respective functions in `Bounded` and `Float`.
-
pub static RADIX: uint = 2u;
-pub static MANTISSA_DIGITS: uint = 53u;
-pub static DIGITS: uint = 15u;
+pub static MANTISSA_DIGITS: uint = 24u;
+pub static DIGITS: uint = 6u;
-pub static EPSILON: f64 = 2.220446e-16_f64;
+pub static EPSILON: f32 = 1.19209290e-07_f32;
-// FIXME (#1433): this is wrong, replace with hexadecimal (%a) statics
-// below.
-pub static MIN_VALUE: f64 = 2.225074e-308_f64;
-pub static MAX_VALUE: f64 = 1.797693e+308_f64;
+/// Minimum normalized f32 value
+pub static MIN_VALUE: f32 = 1.17549435e-38_f32;
+/// Maximum f32 value
+pub static MAX_VALUE: f32 = 3.40282347e+38_f32;
-pub static MIN_EXP: uint = -1021u;
-pub static MAX_EXP: uint = 1024u;
+pub static MIN_EXP: int = -125;
+pub static MAX_EXP: int = 128;
-pub static MIN_10_EXP: int = -307;
-pub static MAX_10_EXP: int = 308;
+pub static MIN_10_EXP: int = -37;
+pub static MAX_10_EXP: int = 38;
pub static NAN: f32 = 0.0_f32/0.0_f32;
pub static INFINITY: f32 = 1.0_f32/0.0_f32;
/// Various useful constants.
pub mod consts {
- // FIXME (requires Issue #1433 to fix): replace with mathematical
- // staticants from cmath.
+ // FIXME: replace with mathematical constants from cmath.
// FIXME(#11621): These constants should be deprecated once CTFE is
// implemented in favour of calling their respective functions in `Float`.
/// Archimedes' constant
pub static PI: f32 = 3.14159265358979323846264338327950288_f32;
+ /// pi * 2.0
+ pub static PI_2: f32 = 6.28318530717958647692528676655900576_f32;
+
/// pi/2.0
pub static FRAC_PI_2: f32 = 1.57079632679489661923132169163975144_f32;
+ /// pi/3.0
+ pub static FRAC_PI_3: f32 = 1.04719755119659774615421446109316763_f32;
+
/// pi/4.0
pub static FRAC_PI_4: f32 = 0.785398163397448309615660845819875721_f32;
+ /// pi/6.0
+ pub static FRAC_PI_6: f32 = 0.52359877559829887307710723054658381_f32;
+
+ /// pi/8.0
+ pub static FRAC_PI_8: f32 = 0.39269908169872415480783042290993786_f32;
+
/// 1.0/pi
pub static FRAC_1_PI: f32 = 0.318309886183790671537767526745028724_f32;
}
impl Bounded for f32 {
+ // NOTE: this is the smallest non-infinite f32 value, *not* MIN_VALUE
#[inline]
- fn min_value() -> f32 { 1.17549435e-38 }
+ fn min_value() -> f32 { -MAX_VALUE }
#[inline]
- fn max_value() -> f32 { 3.40282347e+38 }
+ fn max_value() -> f32 { MAX_VALUE }
}
impl Primitive for f32 {}
impl Float for f32 {
#[inline]
- fn nan() -> f32 { 0.0 / 0.0 }
+ fn nan() -> f32 { NAN }
#[inline]
- fn infinity() -> f32 { 1.0 / 0.0 }
+ fn infinity() -> f32 { INFINITY }
#[inline]
- fn neg_infinity() -> f32 { -1.0 / 0.0 }
+ fn neg_infinity() -> f32 { NEG_INFINITY }
#[inline]
fn neg_zero() -> f32 { -0.0 }
}
#[inline]
- fn mantissa_digits(_: Option<f32>) -> uint { 24 }
+ fn mantissa_digits(_: Option<f32>) -> uint { MANTISSA_DIGITS }
#[inline]
- fn digits(_: Option<f32>) -> uint { 6 }
+ fn digits(_: Option<f32>) -> uint { DIGITS }
#[inline]
- fn epsilon() -> f32 { 1.19209290e-07 }
+ fn epsilon() -> f32 { EPSILON }
#[inline]
- fn min_exp(_: Option<f32>) -> int { -125 }
+ fn min_exp(_: Option<f32>) -> int { MIN_EXP }
#[inline]
- fn max_exp(_: Option<f32>) -> int { 128 }
+ fn max_exp(_: Option<f32>) -> int { MAX_EXP }
#[inline]
- fn min_10_exp(_: Option<f32>) -> int { -37 }
+ fn min_10_exp(_: Option<f32>) -> int { MIN_10_EXP }
#[inline]
- fn max_10_exp(_: Option<f32>) -> int { 38 }
+ fn max_10_exp(_: Option<f32>) -> int { MAX_10_EXP }
/// Constructs a floating point number by multiplying `x` by 2 raised to the
/// power of `exp`
/// sqrt(2.0)
#[inline]
- fn sqrt2() -> f32 { 1.41421356237309504880168872420969808 }
+ fn sqrt2() -> f32 { consts::SQRT2 }
/// 1.0 / sqrt(2.0)
#[inline]
- fn frac_1_sqrt2() -> f32 { 0.707106781186547524400844362104849039 }
+ fn frac_1_sqrt2() -> f32 { consts::FRAC_1_SQRT2 }
#[inline]
fn sqrt(self) -> f32 {
/// Archimedes' constant
#[inline]
- fn pi() -> f32 { 3.14159265358979323846264338327950288 }
+ fn pi() -> f32 { consts::PI }
/// 2.0 * pi
#[inline]
- fn two_pi() -> f32 { 6.28318530717958647692528676655900576 }
+ fn two_pi() -> f32 { consts::PI_2 }
/// pi / 2.0
#[inline]
- fn frac_pi_2() -> f32 { 1.57079632679489661923132169163975144 }
+ fn frac_pi_2() -> f32 { consts::FRAC_PI_2 }
/// pi / 3.0
#[inline]
- fn frac_pi_3() -> f32 { 1.04719755119659774615421446109316763 }
+ fn frac_pi_3() -> f32 { consts::FRAC_PI_3 }
/// pi / 4.0
#[inline]
- fn frac_pi_4() -> f32 { 0.785398163397448309615660845819875721 }
+ fn frac_pi_4() -> f32 { consts::FRAC_PI_4 }
/// pi / 6.0
#[inline]
- fn frac_pi_6() -> f32 { 0.52359877559829887307710723054658381 }
+ fn frac_pi_6() -> f32 { consts::FRAC_PI_6 }
/// pi / 8.0
#[inline]
- fn frac_pi_8() -> f32 { 0.39269908169872415480783042290993786 }
+ fn frac_pi_8() -> f32 { consts::FRAC_PI_8 }
/// 1 .0/ pi
#[inline]
- fn frac_1_pi() -> f32 { 0.318309886183790671537767526745028724 }
+ fn frac_1_pi() -> f32 { consts::FRAC_1_PI }
/// 2.0 / pi
#[inline]
- fn frac_2_pi() -> f32 { 0.636619772367581343075535053490057448 }
+ fn frac_2_pi() -> f32 { consts::FRAC_2_PI }
/// 2.0 / sqrt(pi)
#[inline]
- fn frac_2_sqrtpi() -> f32 { 1.12837916709551257389615890312154517 }
+ fn frac_2_sqrtpi() -> f32 { consts::FRAC_2_SQRTPI }
#[inline]
fn sin(self) -> f32 {
/// Euler's number
#[inline]
- fn e() -> f32 { 2.71828182845904523536028747135266250 }
+ fn e() -> f32 { consts::E }
/// log2(e)
#[inline]
- fn log2_e() -> f32 { 1.44269504088896340735992468100189214 }
+ fn log2_e() -> f32 { consts::LOG2_E }
/// log10(e)
#[inline]
- fn log10_e() -> f32 { 0.434294481903251827651128918916605082 }
+ fn log10_e() -> f32 { consts::LOG10_E }
/// ln(2.0)
#[inline]
- fn ln_2() -> f32 { 0.693147180559945309417232121458176568 }
+ fn ln_2() -> f32 { consts::LN_2 }
/// ln(10.0)
#[inline]
- fn ln_10() -> f32 { 2.30258509299404568401799145468436421 }
+ fn ln_10() -> f32 { consts::LN_10 }
/// Returns the exponential of the number
#[inline]
}
}
-// FIXME (#1433): obtain these in a different way
-
// FIXME(#11621): These constants should be deprecated once CTFE is implemented
// in favour of calling their respective functions in `Bounded` and `Float`.
pub static EPSILON: f64 = 2.2204460492503131e-16_f64;
+/// Minimum normalized f64 value
pub static MIN_VALUE: f64 = 2.2250738585072014e-308_f64;
+/// Maximum f64 value
pub static MAX_VALUE: f64 = 1.7976931348623157e+308_f64;
pub static MIN_EXP: int = -1021;
pub static NEG_INFINITY: f64 = -1.0_f64/0.0_f64;
-// FIXME (#1999): add is_normal, is_subnormal, and fpclassify
-
/// Various useful constants.
pub mod consts {
- // FIXME (requires Issue #1433 to fix): replace with mathematical
- // constants from cmath.
+ // FIXME: replace with mathematical constants from cmath.
// FIXME(#11621): These constants should be deprecated once CTFE is
// implemented in favour of calling their respective functions in `Float`.
/// Archimedes' constant
pub static PI: f64 = 3.14159265358979323846264338327950288_f64;
+ /// pi * 2.0
+ pub static PI_2: f64 = 6.28318530717958647692528676655900576_f64;
+
/// pi/2.0
pub static FRAC_PI_2: f64 = 1.57079632679489661923132169163975144_f64;
+ /// pi/3.0
+ pub static FRAC_PI_3: f64 = 1.04719755119659774615421446109316763_f64;
+
/// pi/4.0
pub static FRAC_PI_4: f64 = 0.785398163397448309615660845819875721_f64;
+ /// pi/6.0
+ pub static FRAC_PI_6: f64 = 0.52359877559829887307710723054658381_f64;
+
+ /// pi/8.0
+ pub static FRAC_PI_8: f64 = 0.39269908169872415480783042290993786_f64;
+
/// 1.0/pi
pub static FRAC_1_PI: f64 = 0.318309886183790671537767526745028724_f64;
}
impl Bounded for f64 {
+ // NOTE: this is the smallest non-infinite f32 value, *not* MIN_VALUE
#[inline]
- fn min_value() -> f64 { 2.2250738585072014e-308 }
+ fn min_value() -> f64 { -MAX_VALUE }
#[inline]
- fn max_value() -> f64 { 1.7976931348623157e+308 }
+ fn max_value() -> f64 { MAX_VALUE }
}
impl Primitive for f64 {}
impl Float for f64 {
#[inline]
- fn nan() -> f64 { 0.0 / 0.0 }
+ fn nan() -> f64 { NAN }
#[inline]
- fn infinity() -> f64 { 1.0 / 0.0 }
+ fn infinity() -> f64 { INFINITY }
#[inline]
- fn neg_infinity() -> f64 { -1.0 / 0.0 }
+ fn neg_infinity() -> f64 { NEG_INFINITY }
#[inline]
fn neg_zero() -> f64 { -0.0 }
/// sqrt(2.0)
#[inline]
- fn sqrt2() -> f64 { 1.41421356237309504880168872420969808 }
+ fn sqrt2() -> f64 { consts::SQRT2 }
/// 1.0 / sqrt(2.0)
#[inline]
- fn frac_1_sqrt2() -> f64 { 0.707106781186547524400844362104849039 }
+ fn frac_1_sqrt2() -> f64 { consts::FRAC_1_SQRT2 }
#[inline]
fn sqrt(self) -> f64 {
/// Archimedes' constant
#[inline]
- fn pi() -> f64 { 3.14159265358979323846264338327950288 }
+ fn pi() -> f64 { consts::PI }
/// 2.0 * pi
#[inline]
- fn two_pi() -> f64 { 6.28318530717958647692528676655900576 }
+ fn two_pi() -> f64 { consts::PI_2 }
/// pi / 2.0
#[inline]
- fn frac_pi_2() -> f64 { 1.57079632679489661923132169163975144 }
+ fn frac_pi_2() -> f64 { consts::FRAC_PI_2 }
/// pi / 3.0
#[inline]
- fn frac_pi_3() -> f64 { 1.04719755119659774615421446109316763 }
+ fn frac_pi_3() -> f64 { consts::FRAC_PI_3 }
/// pi / 4.0
#[inline]
- fn frac_pi_4() -> f64 { 0.785398163397448309615660845819875721 }
+ fn frac_pi_4() -> f64 { consts::FRAC_PI_4 }
/// pi / 6.0
#[inline]
- fn frac_pi_6() -> f64 { 0.52359877559829887307710723054658381 }
+ fn frac_pi_6() -> f64 { consts::FRAC_PI_6 }
/// pi / 8.0
#[inline]
- fn frac_pi_8() -> f64 { 0.39269908169872415480783042290993786 }
+ fn frac_pi_8() -> f64 { consts::FRAC_PI_8 }
/// 1.0 / pi
#[inline]
- fn frac_1_pi() -> f64 { 0.318309886183790671537767526745028724 }
+ fn frac_1_pi() -> f64 { consts::FRAC_1_PI }
/// 2.0 / pi
#[inline]
- fn frac_2_pi() -> f64 { 0.636619772367581343075535053490057448 }
+ fn frac_2_pi() -> f64 { consts::FRAC_2_PI }
/// 2.0 / sqrt(pi)
#[inline]
- fn frac_2_sqrtpi() -> f64 { 1.12837916709551257389615890312154517 }
+ fn frac_2_sqrtpi() -> f64 { consts::FRAC_2_SQRTPI }
#[inline]
fn sin(self) -> f64 {
/// Euler's number
#[inline]
- fn e() -> f64 { 2.71828182845904523536028747135266250 }
+ fn e() -> f64 { consts::E }
/// log2(e)
#[inline]
- fn log2_e() -> f64 { 1.44269504088896340735992468100189214 }
+ fn log2_e() -> f64 { consts::LOG2_E }
/// log10(e)
#[inline]
- fn log10_e() -> f64 { 0.434294481903251827651128918916605082 }
+ fn log10_e() -> f64 { consts::LOG10_E }
/// ln(2.0)
#[inline]
- fn ln_2() -> f64 { 0.693147180559945309417232121458176568 }
+ fn ln_2() -> f64 { consts::LN_2 }
/// ln(10.0)
#[inline]
- fn ln_10() -> f64 { 2.30258509299404568401799145468436421 }
+ fn ln_10() -> f64 { consts::LN_10 }
/// Returns the exponential of the number
#[inline]