[llvm] r247342 - Mark two methods const.

[Rafael Espindola via llvm-commits]

Author: rafael
Date: Thu Sep 10 16:48:36 2015
New Revision: 247342

URL: http://llvm.org/viewvc/llvm-project?rev=247342&view=rev
Log:
Mark two methods const.

While at it, optimize getOffset a bit.

Modified:
    llvm/trunk/include/llvm/MC/StringTableBuilder.h

Modified: llvm/trunk/include/llvm/MC/StringTableBuilder.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/MC/StringTableBuilder.h?rev=247342&r1=247341&r2=247342&view=diff
==============================================================================
--- llvm/trunk/include/llvm/MC/StringTableBuilder.h (original)
+++ llvm/trunk/include/llvm/MC/StringTableBuilder.h Thu Sep 10 16:48:36 2015
@@ -48,16 +48,17 @@ public:
 
   /// \brief Get the offest of a string in the string table. Can only be used
   /// after the table is finalized.
-  size_t getOffset(StringRef s) {
+  size_t getOffset(StringRef s) const {
     assert(isFinalized());
-    assert(StringIndexMap.count(s) && "String is not in table!");
-    return StringIndexMap[s];
+    auto I = StringIndexMap.find(s);
+    assert(I != StringIndexMap.end() && "String is not in table!");
+    return I->second;
   }
 
   void clear();
 
 private:
-  bool isFinalized() {
+  bool isFinalized() const {
     return !StringTable.empty();
   }
 };