perf

Author: tgross35

src/math/generic/ceil.rs

@@ -6,11 +6,11 @@ use super::super::{CastInto, Float};
 pub fn ceil<F: Float>(x: F) -> F {
     let toint = F::ONE / F::EPSILON;
 
-    let e = x.exp_unbiased();
+    let e = x.exp();
     let y: F;
 
     // If the exponent exceeds
-    if e >= F::SIG_BITS.cast() || x == F::ZERO {
+    if e >= (F::SIG_BITS + F::EXP_BIAS).cast() || x == F::ZERO {
         return x;
     }
 
@@ -21,7 +21,7 @@ pub fn ceil<F: Float>(x: F) -> F {
     y = if neg { x - toint + toint - x } else { x + toint - toint - x };
 
     // special case because of non-nearest rounding modes
-    if e < 0 {
+    if e < F::EXP_BIAS.cast() {
         // Raise `FE_INEXACT`
         force_eval!(y);
         return if neg { F::NEG_ZERO } else { F::ONE };