clean up std::iterator in LibcBenchmark.h

Reviewed By: gchatelet

Differential Revision: https://reviews.llvm.org/D135540

diff --git a/libc/benchmarks/LibcBenchmark.h b/libc/benchmarks/LibcBenchmark.h
index b459eb9..e7be9c3 100644 (file)
--- a/libc/benchmarks/LibcBenchmark.h
+++ b/libc/benchmarks/LibcBenchmark.h
@@ -272,8 +272,8 @@ public:
   using difference_type = ssize_t;
   using size_type = size_t;
 
-  class const_iterator
-      : public std::iterator<std::input_iterator_tag, T, ssize_t> {
+  class const_iterator {
+    using iterator_category = std::input_iterator_tag;
     llvm::ArrayRef<T> Array;
     size_t Index;
     size_t Offset;