printf's * doesn't like negative numbers
Text.Printf.printf has a bug where it doesn't like negative numbers for * modifiers:
Prelude Text.Printf> printf "%*sx\n" (-3) "hi"
hix
In the C printf, this would be
hi x
From looking at the source, it's a pretty easy bug to fix. Patch attached. I also included a patch to turn the mixed tabs and spaces into just spaces since I hate that stuff.
Trac metadata
Trac field | Value |
---|---|
Version | 7.6.1 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | libraries/base |
Test case | |
Differential revisions | |
BlockedBy | |
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Blocking | |
CC | |
Operating system | |
Architecture |