1*0b57cec5SDimitry Andric //===--- Capacity.h - Generic computation of ADT memory use -----*- C++ -*-===// 2*0b57cec5SDimitry Andric // 3*0b57cec5SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*0b57cec5SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 5*0b57cec5SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*0b57cec5SDimitry Andric // 7*0b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 8*0b57cec5SDimitry Andric // 9*0b57cec5SDimitry Andric // This file defines the capacity function that computes the amount of 10*0b57cec5SDimitry Andric // memory used by an ADT. 11*0b57cec5SDimitry Andric // 12*0b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 13*0b57cec5SDimitry Andric 14*0b57cec5SDimitry Andric #ifndef LLVM_SUPPORT_CAPACITY_H 15*0b57cec5SDimitry Andric #define LLVM_SUPPORT_CAPACITY_H 16*0b57cec5SDimitry Andric 17*0b57cec5SDimitry Andric #include <cstddef> 18*0b57cec5SDimitry Andric 19*0b57cec5SDimitry Andric namespace llvm { 20*0b57cec5SDimitry Andric 21*0b57cec5SDimitry Andric template <typename T> capacity_in_bytes(const T & x)22*0b57cec5SDimitry Andricstatic inline size_t capacity_in_bytes(const T &x) { 23*0b57cec5SDimitry Andric // This default definition of capacity should work for things like std::vector 24*0b57cec5SDimitry Andric // and friends. More specialized versions will work for others. 25*0b57cec5SDimitry Andric return x.capacity() * sizeof(typename T::value_type); 26*0b57cec5SDimitry Andric } 27*0b57cec5SDimitry Andric 28*0b57cec5SDimitry Andric } // end namespace llvm 29*0b57cec5SDimitry Andric 30*0b57cec5SDimitry Andric #endif 31*0b57cec5SDimitry Andric 32