From f0e95e36ff9bf5827ba122136ba69206a53243c8 Mon Sep 17 00:00:00 2001
From: naoaki <naoaki@ecf4c44f-38d1-4fa4-9757-a0b4dd0349fc>
Date: Mon, 16 Feb 2009 15:23:18 +0000
Subject: [PATCH] Do not allow the strong Wolfe condition for OW-LQN.

git-svn-id: file:///home/svnrepos/software/liblbfgs/trunk@52 ecf4c44f-38d1-4fa4-9757-a0b4dd0349fc
---
 lib/lbfgs.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/lib/lbfgs.c b/lib/lbfgs.c
index a9a3d52..cb2b95d 100644
--- a/lib/lbfgs.c
+++ b/lib/lbfgs.c
@@ -335,13 +335,11 @@ int lbfgs(
     }
     if (param.orthantwise_c != 0.) {
         switch (param.linesearch) {
-        case LBFGS_LINESEARCH_MORETHUENTE:
-            return LBFGSERR_INVALID_LINESEARCH;
         case LBFGS_LINESEARCH_BACKTRACKING:
-        case LBFGS_LINESEARCH_BACKTRACKING_STRONG:
             linesearch = line_search_backtracking_owlqn;
             break;
         default:
+            /* Only the backtracking method is available. */
             return LBFGSERR_INVALID_LINESEARCH;
         }
     } else {