Don't throw an error if the output buffer had no room

[ghc-base.git] / GHC / Unicode.hs

diff --git a/GHC/Unicode.hs b/GHC/Unicode.hs
index 83e2a03..baca833 100644 (file)
--- a/GHC/Unicode.hs
+++ b/GHC/Unicode.hs
@@ -29,9 +29,8 @@ module GHC.Unicode (
   ) where
 
 import GHC.Base
-import GHC.Real  (fromIntegral)
-import GHC.Int
-import GHC.Num   (fromInteger)
+import GHC.Real        (fromIntegral)
+import Foreign.C.Types (CInt)
 
 #include "HsBaseConfig.h"
 
@@ -63,8 +62,8 @@ isControl               :: Char -> Bool
 -- (letters, numbers, marks, punctuation, symbols and spaces).
 isPrint                 :: Char -> Bool
 
--- | Selects white-space characters in the Latin-1 range.
--- (In Unicode terms, this includes spaces and some control characters.)
+-- | Returns 'True' for any Unicode space character, and the control
+-- characters @\\t@, @\\n@, @\\r@, @\\f@, @\\v@.
 isSpace                 :: Char -> Bool
 -- isSpace includes non-breaking space
 -- Done with explicit equalities both for efficiency, and to avoid a tiresome
@@ -134,8 +133,6 @@ toTitle                 :: Char -> Char
 
 -- Regardless of the O/S and Library, use the functions contained in WCsubst.c
 
-type CInt = HTYPE_INT
-
 isAlpha    c = iswalpha (fromIntegral (ord c)) /= 0
 isAlphaNum c = iswalnum (fromIntegral (ord c)) /= 0
 --isSpace    c = iswspace (fromIntegral (ord c)) /= 0