From 77a1a0d2724d69406b8fa81cfb67b73d378ae415 Mon Sep 17 00:00:00 2001
From: Bing Xu <antinucleon@gmail.com>
Date: Mon, 17 Aug 2015 13:01:20 -0600
Subject: [PATCH] fix const

---
 include/dmlc/parameter.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/dmlc/parameter.h b/include/dmlc/parameter.h
index 9bb0ed3d94..b615c37b32 100644
--- a/include/dmlc/parameter.h
+++ b/include/dmlc/parameter.h
@@ -428,7 +428,7 @@ class FieldEntry<int>
   // parent
   typedef FieldEntryNumeric<FieldEntry<int>, int> Parent;
   // override set
-  virtual void Set(void *head, const std::string &value) {
+  virtual void Set(void *head, const std::string &value) const {
     if (is_enum_) {
       std::map<std::string, int>::const_iterator it = enum_map_.find(value);
       std::ostringstream os;
@@ -477,7 +477,7 @@ class FieldEntry<std::string>
   // parent class
   typedef FieldEntryBase<FieldEntry<std::string>, std::string> Parent;
   // override set
-  virtual void Set(void *head, const std::string &value) {
+  virtual void Set(void *head, const std::string &value) const {
     this->Get(head) = value;
     this->Check(head);
   }