[Object][ELF] ELFEntityIterator : Add operators for random access

[oota-llvm.git] / include / llvm / Object / ELF.h

diff --git a/include/llvm/Object/ELF.h b/include/llvm/Object/ELF.h
index 8a5105f5a4bdfa3ab04abda9b80202e1f6b1dc11..0202e06990560c9cd7d4456fb51970132300d3ae 100644 (file)
--- a/include/llvm/Object/ELF.h
+++ b/include/llvm/Object/ELF.h
@@ -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;