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       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>
      23             : static 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          20 :   return x.capacity() * sizeof(typename T::value_type);
      27             : }
      28             : 
      29             : } // end namespace llvm
      30             : 
      31             : #endif
      32             :