#3339: Data.Monoid: Add (+>) as a synonym for mappend
------------------------------+---------------------------------------------
Reporter: bos | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: libraries/base | Version: 6.10.3
Severity: normal | Resolution:
Keywords: | Testcase:
Os: Unknown/Multiple | Architecture: Unknown/Multiple
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Comment (by jeltsch):
What are the exact backward-compatibility problems? I can only think of
cases like
{{{
cat = (++)
}}}
which only matter because the monomorphism restriction is still in use.
The “confusing newbiews with weird error messages” problem is already
present in several places. For example, the expression {{{1 + 'A'}}} will
make GHC complain that there is no instance for {{{(Num Char)}}}. I think,
it would be better to try to generate better error messages instead of
increasing the number of operators.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3339#comment:12>
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