From 8a807b2ffc27b84c9ea0ffe9f22b164ade24badb Mon Sep 17 00:00:00 2001
From: Emilio Jesus Gallego Arias
Date: Wed, 15 Mar 2017 20:48:10 +0100
Subject: [cleanup] Unify all calls to the error function.

This is the continuation of #244, we now deprecate `CErrors.error`,
the single entry point in Coq is `user_err`.

The rationale is to allow for easier grepping, and to ease a future
cleanup of error messages. In particular, we would like to
systematically classify all error messages raised by Coq and be sure
they are properly documented.

We restore the two functions removed in #244 to improve compatibility,
but mark them deprecated.
---
 engine/evd.ml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'engine/evd.ml')

diff --git a/engine/evd.ml b/engine/evd.ml
index 8ade6cb996..b677705bc9 100644
--- a/engine/evd.ml
+++ b/engine/evd.ml
@@ -952,7 +952,7 @@ let declare_principal_goal evk evd =
   | None -> { evd with
     future_goals = evk::evd.future_goals;
     principal_future_goal=Some evk; }
-  | Some _ -> CErrors.error "Only one main subgoal per instantiation."
+  | Some _ -> CErrors.user_err Pp.(str "Only one main subgoal per instantiation.")
 
 let future_goals evd = evd.future_goals
 
-- 
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