+//===--- Capacity.h - Generic computation of ADT memory use -----*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines the capacity function that computes the amount of
+// memory used by an ADT.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_SUPPORT_CAPACITY_H
+#define LLVM_SUPPORT_CAPACITY_H
+
+namespace llvm {
+
+template <typename T>
+static inline size_t capacity_in_bytes(const T &x) {
+ // This default definition of capacity should work for things like std::vector
+ // and friends. More specialized versions will work for others.
+ return x.capacity() * sizeof(typename T::value_type);
+}
+
+} // end namespace llvm
+
+#endif
+