testlapack: make dlamchS const

gonum · Mar 24, 2017 · ca9eaaf · ca9eaaf
1 parent fdbe83c
commit ca9eaaf
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/testlapack/general.go b/testlapack/general.go
@@ -20,12 +20,12 @@ import (
 const (
 	// dlamchE is the machine epsilon. For IEEE this is 2^-53.
 	dlamchE = 1.0 / (1 << 53)
-	dlamchP = 2 * dlamchE
 	dlamchB = 2
+	dlamchP = dlamchB * dlamchE
+	// dlamchS is the smallest normal number. For IEEE this is 2^{-1022}.
+	dlamchS = 1.0 / (1 << 256) / (1 << 256) / (1 << 256) / (1 << 254)
 )
 
-var dlamchS = math.Nextafter((4 / math.MaxFloat64), 0)
-
 func max(a, b int) int {
 	if a > b {
 		return a