On Tue, Nov 08, 2005 at 02:43:47PM +0000, Malcolm Wallace wrote:
> Of course, there is the old stand-by C pre-processor trick:
>
> #define superError(s) error (s++"\nin file "++__FILE__ \
> ++" at line "++__LINE__)
There is a nice trick I saw in darcs' code to make this even more
Haskellish:
#define superError (\s -> error (s++"\nin file "++ __FILE__ \
++" at line "++ show (__LINE__ :: Int)))
so you can simply write:
superError "message"
Best regards
Tomasz
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