Add greater_ptr functor.

llvm-svn: 15070

1 files changed, 7 insertions, 0 deletions

diff --git a/llvm/include/Support/STLExtras.h b/llvm/include/Support/STLExtras.h
index 961407f5040..b6379d26232 100644
--- a/llvm/include/Support/STLExtras.h
+++ b/llvm/include/Support/STLExtras.h
@@ -60,6 +60,13 @@ struct less_ptr : public std::binary_function<Ty, Ty, bool> {
   }
 };
 
+template<class Ty>
+struct greater_ptr : public std::binary_function<Ty, Ty, bool> {
+  bool operator()(const Ty* left, const Ty* right) const {
+    return *right < *left;
+  }
+};
+
 // deleter - Very very very simple method that is used to invoke operator
 // delete on something.  It is used like this: 
 //