[PATCH] D16053: is_contained() convenience function

[Alexander Droste via llvm-commits]

Alexander_Droste retitled this revision from "contains() convenience function" to "is_contained() convenience function".
Alexander_Droste updated this revision to Diff 45115.
Alexander_Droste added a comment.

- changed implementation to `std::equal_to<>` style


http://reviews.llvm.org/D16053

Files:
  include/llvm/ADT/STLExtras.h

Index: include/llvm/ADT/STLExtras.h
===================================================================
--- include/llvm/ADT/STLExtras.h
+++ include/llvm/ADT/STLExtras.h
@@ -386,6 +386,13 @@
   return std::find(Range.begin(), Range.end(), val);
 }
 
+/// Wrapper function around llvm::any_of to detect if an element exists
+/// in a container.
+template <typename R, typename E>
+bool is_contained(R &&Range, const E &Element) {
+    return any_of(Range, bind2nd(std::equal_to<E>(), Element));
+}
+
 //===----------------------------------------------------------------------===//
 //     Extra additions to <memory>
 //===----------------------------------------------------------------------===//


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