[llvm] r232453 - [Object][ELF] ELFEntityIterator : Add operators for random access

[Shankar Easwaran]

Author: shankare
Date: Mon Mar 16 21:12:35 2015
New Revision: 232453

URL: http://llvm.org/viewvc/llvm-project?rev=232453&view=rev
Log:
[Object][ELF] ELFEntityIterator : Add operators for random access

Add operators add/subtract for random access. This is essentially used by
lld.

Modified:
    llvm/trunk/include/llvm/Object/ELF.h

Modified: llvm/trunk/include/llvm/Object/ELF.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Object/ELF.h?rev=232453&r1=232452&r2=232453&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Object/ELF.h (original)
+++ llvm/trunk/include/llvm/Object/ELF.h Mon Mar 16 21:12:35 2015
@@ -94,6 +94,18 @@ public:
       return *this;
     }
 
+    ELFEntityIterator &operator+(difference_type n) {
+      assert(Current && "Attempted to increment an invalid iterator!");
+      Current += n;
+      return *this;
+    }
+
+    ELFEntityIterator &operator-(difference_type n) {
+      assert(Current && "Attempted to subtract an invalid iterator!");
+      Current -= n;
+      return *this;
+    }
+
     ELFEntityIterator operator ++(int) {
       ELFEntityIterator Tmp = *this;
       ++*this;