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-rw-r--r--compiler/utils/StringBuffer.lhs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/utils/StringBuffer.lhs b/compiler/utils/StringBuffer.lhs
index 1aead2d74b..2b3b775791 100644
--- a/compiler/utils/StringBuffer.lhs
+++ b/compiler/utils/StringBuffer.lhs
@@ -224,7 +224,7 @@ parseUnsignedInteger (StringBuffer buf _ cur) len radix char_to_int
--LOL, in implementations where the indexing needs slow unsafePerformIO,
--this is less (not more) efficient than using the IO monad explicitly
--here.
- ptr' = pUnbox ptr
+ !ptr' = pUnbox ptr
byteOff i = cBox (indexWord8OffFastPtrAsFastChar ptr' (iUnbox (cur + i)))
go i x | i == len = x
| otherwise = case byteOff i of