From 79fa9f528e87b5e0845f8d7e5b8e13a9e4f34049 Mon Sep 17 00:00:00 2001
From: stevenj <stevenj@alum.mit.edu>
Date: Mon, 27 Aug 2012 13:53:59 -0400
Subject: [PATCH] cobyla should return ROUNDOFF_LIMITED if it "converges" to
 zero x tolerance, rather than XTOL_REACHED; thanks to David Liu for the bug
 report

Ignore-this: c5ac800405beb77a0b18a7ba8f20a4a4

darcs-hash:20120827175359-c8de0-1ee07387d0560bde56d8de9315c20b03e4fea186.gz
---
 cobyla/cobyla.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/cobyla/cobyla.c b/cobyla/cobyla.c
index 763e01c..bb3066b 100644
--- a/cobyla/cobyla.c
+++ b/cobyla/cobyla.c
@@ -1193,8 +1193,8 @@ L550:
     }
     goto L140;
   }
-  else
-       rc = NLOPT_XTOL_REACHED;
+  else /* rho <= rhoend */
+       rc = rhoend > 0 ? NLOPT_XTOL_REACHED : NLOPT_ROUNDOFF_LIMITED;
 
 /* Return the best calculated values of the variables. */
 
-- 
2.30.2