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-rw-r--r--plugins/cc/cctac.ml4
1 files changed, 3 insertions, 1 deletions
diff --git a/plugins/cc/cctac.ml b/plugins/cc/cctac.ml
index 95ff4d34..764e36b0 100644
--- a/plugins/cc/cctac.ml
+++ b/plugins/cc/cctac.ml
@@ -129,7 +129,9 @@ let non_trivial = function
let patterns_of_constr env sigma nrels term=
let f,args=
- try destApp (whd_delta env term) with _ -> raise Not_found in
+ try destApp (whd_delta env term)
+ with e when Errors.noncritical e -> raise Not_found
+ in
if eq_constr f (Lazy.force _eq) && (Array.length args)=3
then
let patt1,rels1 = pattern_of_constr env sigma args.(1)