From 04da98934ad1c083d21ffc6a83a834c6c4b555d4 Mon Sep 17 00:00:00 2001
From: Willem Van Onsem <3482343+KommuSoft@users.noreply.github.com>
Date: Tue, 8 Dec 2020 18:26:55 +0100
Subject: [PATCH] simplify calculating percentages fixing #1194 (#1236)

---
 haddock-api/src/Haddock/Interface.hs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/haddock-api/src/Haddock/Interface.hs b/haddock-api/src/Haddock/Interface.hs
index 1501919bbe..b68cc4a9ba 100644
--- a/haddock-api/src/Haddock/Interface.hs
+++ b/haddock-api/src/Haddock/Interface.hs
@@ -186,7 +186,7 @@ processModule verbosity modsum flags modMap instIfaceMap = do
       liftIO $ mapM_ putStrLn (nub msgs)
       dflags <- getDynFlags
       let (haddockable, haddocked) = ifaceHaddockCoverage interface
-          percentage = round (fromIntegral haddocked * 100 / fromIntegral haddockable :: Double) :: Int
+          percentage = div (haddocked * 100) haddockable
           modString = moduleString (ifaceMod interface)
           coverageMsg = printf " %3d%% (%3d /%3d) in '%s'" percentage haddocked haddockable modString
           header = case ifaceDoc interface of
@@ -245,4 +245,3 @@ buildHomeLinks ifaces = foldl upd Map.empty (reverse ifaces)
         mdl            = ifaceMod iface
         keep_old env n = Map.insertWith (\_ old -> old) n mdl env
         keep_new env n = Map.insert n mdl env
-
-- 
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