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| author | Simon Peyton Jones <simonpj@microsoft.com> | 2013-04-23 09:19:47 +0100 |
|---|---|---|
| committer | Simon Peyton Jones <simonpj@microsoft.com> | 2013-04-23 09:19:47 +0100 |
| commit | af58cc6f75d2e7eaae74e74a48b9eaa3cd8113ab (patch) | |
| tree | 0cc274ba8e42ee61f3b63ca1d9c7ec598b2749be /testsuite/tests/typecheck/should_fail/T7857.stderr | |
| parent | 0d0739096c969f9380336bb8f1f11c302fcf539f (diff) | |
| download | haskell-af58cc6f75d2e7eaae74e74a48b9eaa3cd8113ab.tar.gz | |
Test Trac #7857
Diffstat (limited to 'testsuite/tests/typecheck/should_fail/T7857.stderr')
| -rw-r--r-- | testsuite/tests/typecheck/should_fail/T7857.stderr | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/testsuite/tests/typecheck/should_fail/T7857.stderr b/testsuite/tests/typecheck/should_fail/T7857.stderr new file mode 100644 index 0000000000..6fdad87b2a --- /dev/null +++ b/testsuite/tests/typecheck/should_fail/T7857.stderr @@ -0,0 +1,16 @@ + +T7857.hs:8:11: + Could not deduce (PrintfType s0) arising from a use of ‛printf’ + from the context (PrintfArg t) + bound by the inferred type of g :: PrintfArg t => t -> s + at T7857.hs:8:1-21 + The type variable ‛s0’ is ambiguous + Note: there are several potential instances: + instance [safe] (PrintfArg a, PrintfType r) => PrintfType (a -> r) + -- Defined in ‛Text.Printf’ + instance [safe] PrintfType (IO a) -- Defined in ‛Text.Printf’ + instance [safe] IsChar c => PrintfType [c] + -- Defined in ‛Text.Printf’ + In the second argument of ‛($)’, namely ‛printf "" i’ + In the expression: f $ printf "" i + In an equation for ‛g’: g i = f $ printf "" i |