id summary reporter owner description type status priority milestone component version resolution keywords cc os architecture failure difficulty testcase blockedby blocking related 4389 Unexpcted failure, ambiguous type variable defaulted (ghci) daniel.is.fischer "{{{ =====> print019(ghci) 1444 of 2601 [0, 0, 0] cd ./ghci.debugger/scripts && HC='/home/dafis/Haskell/Hacking/newghc/inplace/bin/ghc-stage2' HC_OPTS='-dcore-lint -dcmm-lint -dno-debug-output -no-user-package-conf -rtsopts -optl-lz ' '/home/dafis/Haskell/Hacking/newghc/inplace/bin/ghc-stage2' --interactive -v0 -ignore-dot-ghci -dcore-lint -dcmm-lint -dno-debug-output -no-user-package-conf -rtsopts -optl-lz -ignore-dot-ghci print019.run.stdout 2>print019.run.stderr Actual stderr output differs from expected: --- ./ghci.debugger/scripts/print019.stderr.normalised 2010-10-12 20:42:15.000000000 +0200 +++ ./ghci.debugger/scripts/print019.run.stderr.normalised 2010-10-12 20:42:15.000000000 +0200 @@ -1,7 +0,0 @@ - -:1:1: - Ambiguous type variable `t1' in the constraint: - (Show t1) arising from a use of `print' - Cannot resolve unknown runtime types: t1 - Use :print or :force to determine these types - In a stmt of an interactive GHCi command: print it *** unexpected failure for print019(ghci) }}} Unexpectedly, the type variable was resolved." bug closed highest 7.0.1 Test Suite 7.1 fixed Unknown/Multiple Unknown/Multiple Incorrect result at runtime