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 20 namespace llvm { 21 22 template <typename T> capacity_in_bytes(const T & x)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