Show instance for level now has fixed precision for dB

3 files changed, 8 insertions, 3 deletions

diff --git a/src/Trivmix.hs b/src/Trivmix.hs
index 0f84f62..cedc3e3 100644
--- a/src/Trivmix.hs
+++ b/src/Trivmix.hs
@@ -48,9 +48,14 @@ data Options = Options
 
 data Level = Lin Float | DB Float
 
+fixedPrecision :: (RealFrac a, Num a) => a -> a
+fixedPrecision x = (fromInteger $ round $ p * x) / p
+  where
+    p = 1e3
+
 instance Show Level where
   show (Lin x) = show x
-  show (DB x) = (show x') ++ "dB"
+  show (DB x) = (show $ fixedPrecision x') ++ "dB"
     where
       x' = 20 * (logBase 10 x)
 
diff --git a/trivmix.cabal b/trivmix.cabal
index e6dcc3b..92388cc 100644
--- a/trivmix.cabal
+++ b/trivmix.cabal
@@ -2,7 +2,7 @@
 -- documentation, see http://haskell.org/cabal/users-guide/
 
 name:                trivmix
-version:             2.4.3
+version:             2.4.4
 -- synopsis:            
 -- description:         
 license:             PublicDomain
diff --git a/trivmix.nix b/trivmix.nix
index ec065eb..7f8d665 100644
--- a/trivmix.nix
+++ b/trivmix.nix
@@ -6,7 +6,7 @@
 
 cabal.mkDerivation (self: {
   pname = "trivmix";
-  version = "2.4.3";
+  version = "2.4.4";
   src = ./.;
   isLibrary = false;
   isExecutable = true;