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 namespace llvm { 19 20 template <typename T> capacity_in_bytes(const T & x)21static inline size_t capacity_in_bytes(const T &x) { 22 // This default definition of capacity should work for things like std::vector 23 // and friends. More specialized versions will work for others. 24 return x.capacity() * sizeof(typename T::value_type); 25 } 26 27 } // end namespace llvm 28 29 #endif 30 31