1 files changed, 17 insertions, 53 deletions

diff --git a/src/libstd/num/float.rs b/src/libstd/num/float.rs
index d73ff16c6f7..486d3562089 100644
--- a/src/libstd/num/float.rs
+++ b/src/libstd/num/float.rs
@@ -23,22 +23,12 @@
 #[allow(missing_doc)];
 #[allow(non_uppercase_statics)];
 
-use f64;
-use libc::c_int;
 use num::{Zero, One, strconv};
 use num::FPCategory;
 use num;
 use prelude::*;
 use to_str;
 
-pub use f64::{add, sub, mul, div, rem, lt, le, eq, ne, ge, gt};
-pub use f64::{acos, asin, atan2, cbrt, ceil, copysign, cosh, floor};
-pub use f64::{erf, erfc, exp, exp_m1, exp2, abs_sub};
-pub use f64::{mul_add, fmax, fmin, next_after, frexp, hypot, ldexp};
-pub use f64::{lgamma, ln, log_radix, ln_1p, log10, log2, ilog_radix};
-pub use f64::{modf, pow, powi, round, sinh, tanh, tgamma, trunc};
-pub use f64::{j0, j1, jn, y0, y1, yn};
-
 pub static NaN: float = 0.0/0.0;
 
 pub static infinity: float = 1.0/0.0;
@@ -342,31 +332,6 @@ pub fn pow_with_uint(base: uint, pow: uint) -> float {
     return total;
 }
 
-#[inline]
-pub fn abs(x: float) -> float {
-    f64::abs(x as f64) as float
-}
-#[inline]
-pub fn sqrt(x: float) -> float {
-    f64::sqrt(x as f64) as float
-}
-#[inline]
-pub fn atan(x: float) -> float {
-    f64::atan(x as f64) as float
-}
-#[inline]
-pub fn sin(x: float) -> float {
-    f64::sin(x as f64) as float
-}
-#[inline]
-pub fn cos(x: float) -> float {
-    f64::cos(x as f64) as float
-}
-#[inline]
-pub fn tan(x: float) -> float {
-    f64::tan(x as f64) as float
-}
-
 impl Num for float {}
 
 #[cfg(not(test))]
@@ -443,19 +408,19 @@ impl One for float {
 impl Round for float {
     /// Round half-way cases toward `neg_infinity`
     #[inline]
-    fn floor(&self) -> float { floor(*self as f64) as float }
+    fn floor(&self) -> float { (*self as f64).floor() as float }
 
     /// Round half-way cases toward `infinity`
     #[inline]
-    fn ceil(&self) -> float { ceil(*self as f64) as float }
+    fn ceil(&self) -> float { (*self as f64).ceil() as float }
 
     /// Round half-way cases away from `0.0`
     #[inline]
-    fn round(&self) -> float { round(*self as f64) as float }
+    fn round(&self) -> float { (*self as f64).round() as float }
 
     /// The integer part of the number (rounds towards `0.0`)
     #[inline]
-    fn trunc(&self) -> float { trunc(*self as f64) as float }
+    fn trunc(&self) -> float { (*self as f64).trunc() as float }
 
     ///
     /// The fractional part of the number, satisfying:
@@ -727,31 +692,30 @@ impl Real for float {
 impl RealExt for float {
     #[inline]
     fn lgamma(&self) -> (int, float) {
-        let mut sign = 0;
-        let result = lgamma(*self as f64, &mut sign);
-        (sign as int, result as float)
+        let (sign, value) = (*self as f64).lgamma();
+        (sign, value as float)
     }
 
     #[inline]
-    fn tgamma(&self) -> float { tgamma(*self as f64) as float }
+    fn tgamma(&self) -> float { (*self as f64).tgamma() as float }
 
     #[inline]
-    fn j0(&self) -> float { j0(*self as f64) as float }
+    fn j0(&self) -> float { (*self as f64).j0() as float }
 
     #[inline]
-    fn j1(&self) -> float { j1(*self as f64) as float }
+    fn j1(&self) -> float { (*self as f64).j1() as float }
 
     #[inline]
-    fn jn(&self, n: int) -> float { jn(n as c_int, *self as f64) as float }
+    fn jn(&self, n: int) -> float { (*self as f64).jn(n) as float }
 
     #[inline]
-    fn y0(&self) -> float { y0(*self as f64) as float }
+    fn y0(&self) -> float { (*self as f64).y0() as float }
 
     #[inline]
-    fn y1(&self) -> float { y1(*self as f64) as float }
+    fn y1(&self) -> float { (*self as f64).y1() as float }
 
     #[inline]
-    fn yn(&self, n: int) -> float { yn(n as c_int, *self as f64) as float }
+    fn yn(&self, n: int) -> float { (*self as f64).yn(n) as float }
 }
 
 #[cfg(not(test))]
@@ -792,7 +756,7 @@ impl Neg<float> for float {
 impl Signed for float {
     /// Computes the absolute value. Returns `NaN` if the number is `NaN`.
     #[inline]
-    fn abs(&self) -> float { abs(*self) }
+    fn abs(&self) -> float { (*self as f64).abs() as float }
 
     ///
     /// The positive difference of two numbers. Returns `0.0` if the number is less than or
@@ -812,7 +776,7 @@ impl Signed for float {
     ///
     #[inline]
     fn signum(&self) -> float {
-        if self.is_NaN() { NaN } else { f64::copysign(1.0, *self as f64) as float }
+        (*self as f64).signum() as float
     }
 
     /// Returns `true` if the number is positive, including `+0.0` and `infinity`
@@ -939,13 +903,13 @@ impl Float for float {
     ///
     #[inline]
     fn mul_add(&self, a: float, b: float) -> float {
-        mul_add(*self as f64, a as f64, b as f64) as float
+        (*self as f64).mul_add(a as f64, b as f64) as float
     }
 
     /// Returns the next representable floating-point value in the direction of `other`
     #[inline]
     fn next_after(&self, other: float) -> float {
-        next_after(*self as f64, other as f64) as float
+        (*self as f64).next_after(other as f64) as float
     }
 }