[llvm] r297398 - Add front() method to SetVector.

[Jan Sjodin via llvm-commits]

Author: jsjodin
Date: Thu Mar  9 12:25:07 2017
New Revision: 297398

URL: http://llvm.org/viewvc/llvm-project?rev=297398&view=rev
Log:
Add front() method to SetVector.

Differential Revision: https://reviews.llvm.org/D27262


Modified:
    llvm/trunk/include/llvm/ADT/SetVector.h

Modified: llvm/trunk/include/llvm/ADT/SetVector.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/ADT/SetVector.h?rev=297398&r1=297397&r2=297398&view=diff
==============================================================================
--- llvm/trunk/include/llvm/ADT/SetVector.h (original)
+++ llvm/trunk/include/llvm/ADT/SetVector.h Thu Mar  9 12:25:07 2017
@@ -119,6 +119,12 @@ public:
     return vector_.rend();
   }
 
+  /// \brief Return the first element of the SetVector.
+  const T &front() const {
+    assert(!empty() && "Cannot call front() on empty SetVector!");
+    return vector_.front();
+  }
+
   /// \brief Return the last element of the SetVector.
   const T &back() const {
     assert(!empty() && "Cannot call back() on empty SetVector!");