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Diffstat (limited to 'test-suite/bugs/closed/4121.v')
| -rw-r--r-- | test-suite/bugs/closed/4121.v | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/test-suite/bugs/closed/4121.v b/test-suite/bugs/closed/4121.v new file mode 100644 index 00000000..5f8c411c --- /dev/null +++ b/test-suite/bugs/closed/4121.v @@ -0,0 +1,15 @@ +(* -*- coq-prog-args: ("-emacs" "-nois") -*- *) +(* File reduced by coq-bug-finder from original input, then from 830 lines to 47 lines, then from 25 lines to 11 lines *) +(* coqc version 8.5beta1 (March 2015) compiled on Mar 11 2015 18:51:36 with OCaml 4.01.0 + coqtop version cagnode15:/afs/csail.mit.edu/u/j/jgross/coq-8.5,v8.5 (8dbfee5c5f897af8186cb1bdfb04fd4f88eca677) *) + +Set Universe Polymorphism. +Class Contr_internal (A : Type) := BuildContr { center : A }. +Arguments center A {_}. +Class Contr (A : Type) : Type := Contr_is_trunc : Contr_internal A. +Hint Extern 0 => progress change Contr_internal with Contr in * : typeclass_instances. +Definition contr_paths_contr0 {A} `{Contr A} : Contr A := {| center := center A |}. +Instance contr_paths_contr1 {A} `{Contr A} : Contr A := {| center := center A |}. +Check @contr_paths_contr0@{i}. +Check @contr_paths_contr1@{i}. (* Error: Universe instance should have length 2 *) +(** It should have length 1, just like contr_paths_contr0 *)
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