1//===--- Capacity.h - Generic computation of ADT memory use -----*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This file defines the capacity function that computes the amount of
10// memory used by an ADT.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef LLVM_SUPPORT_CAPACITY_H
15#define LLVM_SUPPORT_CAPACITY_H
16
17#include <cstddef>
18
19namespace llvm {
20
21template <typename T>
22static inline size_t capacity_in_bytes(const T &x) {
23 // This default definition of capacity should work for things like std::vector
24 // and friends. More specialized versions will work for others.
25 return x.capacity() * sizeof(typename T::value_type);
26}
27
28} // end namespace llvm
29
30#endif
31
32