diff options
Diffstat (limited to 'testsuite/tests/deriving/should_fail/T2851.stderr')
| -rw-r--r-- | testsuite/tests/deriving/should_fail/T2851.stderr | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/testsuite/tests/deriving/should_fail/T2851.stderr b/testsuite/tests/deriving/should_fail/T2851.stderr new file mode 100644 index 0000000000..a2beb9869d --- /dev/null +++ b/testsuite/tests/deriving/should_fail/T2851.stderr @@ -0,0 +1,9 @@ + +T2851.hs:9:15: + No instance for (Show (F a)) + arising from the 'deriving' clause of a data type declaration + Possible fix: + add an instance declaration for (Show (F a)) + or use a standalone 'deriving instance' declaration, + so you can specify the instance context yourself + When deriving the instance for (Show (D a)) |