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 | |
19 | namespace llvm { |
20 | |
21 | template <typename T> |
22 | static 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 | |