1//===--- Capacity.h - Generic computation of ADT memory use -----*- C++ -*-===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// This file defines the capacity function that computes the amount of 11// memory used by an ADT. 12// 13//===----------------------------------------------------------------------===// 14 15#ifndef LLVM_SUPPORT_CAPACITY_H 16#define LLVM_SUPPORT_CAPACITY_H 17 18#include <cstddef> 19 20namespace llvm { 21 22template <typename T> 23static inline size_t capacity_in_bytes(const T &x) { 24 // This default definition of capacity should work for things like std::vector 25 // and friends. More specialized versions will work for others. 26 return x.capacity() * sizeof(typename T::value_type); 27} 28 29} // end namespace llvm 30 31#endif 32 33