Add some missing method wrappers to std::num

Author: brendanzab

src/libstd/num/num.rs

@@ -45,18 +45,23 @@ pub trait Orderable: Ord {
     fn clamp(&self, mn: &Self, mx: &Self) -> Self;
 }
 
-#[inline(always)] pub fn min<T: Orderable>(a: T, b: T) -> T { a.min(&b) }
-#[inline(always)] pub fn max<T: Orderable>(a: T, b: T) -> T { a.max(&b) }
+#[inline(always)] pub fn min<T: Orderable>(x: T, y: T) -> T { x.min(&y) }
+#[inline(always)] pub fn max<T: Orderable>(x: T, y: T) -> T { x.max(&y) }
+#[inline(always)] pub fn clamp<T: Orderable>(value: T, mn: T, mx: T) -> T { value.clamp(&mn, &mx) }
 
 pub trait Zero {
     fn zero() -> Self;      // FIXME (#5527): This should be an associated constant
     fn is_zero(&self) -> bool;
 }
 
+#[inline(always)] pub fn zero<T: Zero>() -> T { Zero::zero() }
+
 pub trait One {
     fn one() -> Self;       // FIXME (#5527): This should be an associated constant
 }
 
+#[inline(always)] pub fn one<T: One>() -> T { One::one() }
+
 pub trait Signed: Num
                 + Neg<Self> {
     fn abs(&self) -> Self;
@@ -68,6 +73,7 @@ pub trait Signed: Num
 }
 
 #[inline(always)] pub fn abs<T: Signed>(value: T) -> T { value.abs() }
+#[inline(always)] pub fn abs_sub<T: Signed>(x: T, y: T) -> T { x.abs_sub(&y) }
 #[inline(always)] pub fn signum<T: Signed>(value: T) -> T { value.signum() }
 
 pub trait Unsigned: Num {}
@@ -90,6 +96,9 @@ pub trait Integer: Num
     fn is_odd(&self) -> bool;
 }
 
+#[inline(always)] pub fn gcd<T: Integer>(x: T, y: T) -> T { x.gcd(&y) }
+#[inline(always)] pub fn lcm<T: Integer>(x: T, y: T) -> T { x.lcm(&y) }
+
 pub trait Round {
     fn floor(&self) -> Self;
     fn ceil(&self) -> Self;
@@ -113,15 +122,21 @@ pub trait Algebraic {
     fn hypot(&self, other: &Self) -> Self;
 }
 
+#[inline(always)] pub fn pow<T: Algebraic>(value: T, n: T) -> T { value.pow(&n) }
 #[inline(always)] pub fn sqrt<T: Algebraic>(value: T) -> T { value.sqrt() }
+#[inline(always)] pub fn rsqrt<T: Algebraic>(value: T) -> T { value.rsqrt() }
+#[inline(always)] pub fn cbrt<T: Algebraic>(value: T) -> T { value.cbrt() }
+#[inline(always)] pub fn hypot<T: Algebraic>(x: T, y: T) -> T { x.hypot(&y) }
 
 pub trait Trigonometric {
     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 sin_cos(&self) -> (Self, Self);
 }
@@ -135,10 +150,12 @@ pub trait Trigonometric {
 #[inline(always)] pub fn atan<T: Trigonometric>(value: T) -> T { value.atan() }
 
 #[inline(always)] pub fn atan2<T: Trigonometric>(x: T, y: T) -> T { x.atan2(&y) }
+#[inline(always)] pub fn sin_cos<T: Trigonometric>(value: T) -> (T, T) { value.sin_cos() }
 
 pub trait Exponential {
     fn exp(&self) -> Self;
     fn exp2(&self) -> Self;
+
     fn ln(&self) -> Self;
     fn log(&self, base: &Self) -> Self;
     fn log2(&self) -> Self;
@@ -157,6 +174,7 @@ pub trait Hyperbolic: Exponential {
     fn sinh(&self) -> Self;
     fn cosh(&self) -> Self;
     fn tanh(&self) -> Self;
+
     fn asinh(&self) -> Self;
     fn acosh(&self) -> Self;
     fn atanh(&self) -> Self;
@@ -326,6 +344,10 @@ pub trait Float: Real
 }
 
 ///
+#[inline(always)] pub fn exp_m1<T: Float>(value: T) -> T { value.exp_m1() }
+#[inline(always)] pub fn ln_1p<T: Float>(value: T) -> T { value.ln_1p() }
+#[inline(always)] pub fn mul_add<T: Float>(a: T, b: T, c: T) -> T { a.mul_add(b, c) }
+
 /// Cast from one machine scalar to another
 ///
 /// # Example