LCOV - code coverage report
Current view: top level - libreoffice/solver/unxlngi6.pro/inc/rtl - allocator.hxx (source / functions) Hit Total Coverage
Test: libreoffice_filtered.info Lines: 21 21 100.0 %
Date: 2012-12-27 Functions: 56 78 71.8 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : #ifndef INCLUDED_RTL_ALLOCATOR_HXX
      20             : #define INCLUDED_RTL_ALLOCATOR_HXX
      21             : 
      22             : #include "sal/types.h"
      23             : #include "rtl/alloc.h"
      24             : #include <cstddef>
      25             : 
      26             : /// @cond INTERNAL
      27             : 
      28             : //######################################################
      29             : // This is no general purpose STL allocator but one
      30             : // necessary to use STL for some implementation but
      31             : // avoid linking sal against the STLPort library!!!
      32             : // For more information on when and how to define a
      33             : // custom stl allocator have a look at Scott Meyers:
      34             : // "Effective STL", Nicolai M. Josuttis:
      35             : // "The C++ Standard Library - A Tutorial and Reference"
      36             : // and at http://www.josuttis.com/cppcode/allocator.html
      37             : 
      38             : namespace rtl {
      39             : 
      40             : template<class T>
      41             : class Allocator
      42             : {
      43             : public:
      44             :     typedef T value_type;
      45             :     typedef T* pointer;
      46             :     typedef const T* const_pointer;
      47             :     typedef T& reference;
      48             :     typedef const T& const_reference;
      49             :     typedef ::std::size_t size_type;
      50             :     typedef ::std::ptrdiff_t difference_type;
      51             : 
      52             :     //-----------------------------------------
      53             :     template<class U>
      54             :     struct rebind
      55             :     {
      56             :         typedef Allocator<U> other;
      57             :     };
      58             : 
      59             :     //-----------------------------------------
      60             :     pointer address (reference value) const
      61             :     {
      62             :         return &value;
      63             :     }
      64             : 
      65             :     //-----------------------------------------
      66             :     const_pointer address (const_reference value) const
      67             :     {
      68             :         return &value;
      69             :     }
      70             : 
      71             :     //-----------------------------------------
      72        2327 :     Allocator() SAL_THROW(())
      73        2327 :     {}
      74             : 
      75             :     //-----------------------------------------
      76             :     template<class U>
      77        2570 :     Allocator (SAL_UNUSED_PARAMETER const Allocator<U>&) SAL_THROW(())
      78        2570 :     {}
      79             : 
      80             :     //-----------------------------------------
      81        2067 :     Allocator(const Allocator&) SAL_THROW(())
      82        2067 :     {}
      83             : 
      84             :     //-----------------------------------------
      85        5934 :     ~Allocator() SAL_THROW(())
      86        5934 :     {}
      87             : 
      88             :     //-----------------------------------------
      89         106 :     size_type max_size() const SAL_THROW(())
      90             :     {
      91         106 :         return size_type(-1)/sizeof(T);
      92             :     }
      93             : 
      94             :     //-----------------------------------------
      95             :     /* Normally the code for allocate should
      96             :        throw a std::bad_alloc exception if the
      97             :        requested memory could not be allocated:
      98             :        (C++ standard 20.4.1.1):
      99             : 
     100             :        pointer allocate (size_type n, const void* hint = 0)
     101             :        {
     102             :          pointer p = reinterpret_cast<pointer>(
     103             :              rtl_allocateMemory(sal_uInt32(n * sizeof(T))));
     104             : 
     105             :          if (NULL == p)
     106             :              throw ::std::bad_alloc();
     107             : 
     108             :          return p;
     109             :        }
     110             : 
     111             :        but some compilers do not compile it if exceptions
     112             :        are not enabled, e.g. GCC under Linux and it is
     113             :        in general not desired to compile sal with exceptions
     114             :        enabled. */
     115        3874 :     pointer allocate (size_type n, SAL_UNUSED_PARAMETER const void* = 0)
     116             :     {
     117             :         return reinterpret_cast<pointer>(
     118        3874 :             rtl_allocateMemory(sal_uInt32(n * sizeof(T))));
     119             :     }
     120             : 
     121             :     //-----------------------------------------
     122        2589 :     void deallocate (pointer p, SAL_UNUSED_PARAMETER size_type /* n */)
     123             :     {
     124        2589 :         rtl_freeMemory(p);
     125        2589 :     }
     126             : 
     127             :     //-----------------------------------------
     128       19112 :     void construct (pointer p, const T& value)
     129             :     {
     130       19112 :         new ((void*)p)T(value);
     131       19112 :     }
     132             : 
     133             :     //-----------------------------------------
     134       15000 :     void destroy (pointer p)
     135             :     {
     136        7765 :         p->~T();
     137             :         (void)p; //MSVC2005 annoyingly warns this is unused
     138       15000 :     }
     139             : };
     140             : 
     141             : //######################################################
     142             : // Custom STL allocators must be stateless (see
     143             : // references above) that's why the operators below
     144             : // return always true or false
     145             : 
     146             : template<class T, class U> inline bool operator ==(
     147             :     SAL_UNUSED_PARAMETER const Allocator<T>&,
     148             :     SAL_UNUSED_PARAMETER const Allocator<U>&) SAL_THROW(())
     149             : {
     150             :     return true;
     151             : }
     152             : 
     153             : template<class T, class U>
     154             : inline bool operator!= (const Allocator<T>&, const Allocator<U>&) SAL_THROW(())
     155             : {
     156             :     return false;
     157             : }
     158             : 
     159             : } /* namespace rtl */
     160             : 
     161             : /** REQUIRED BY STLPort (see stlport '_alloc.h'):
     162             :     Hack for compilers that do not support member
     163             :     template classes (e.g. MSVC 6)
     164             : */
     165             : namespace _STL
     166             : {
     167             :     template<class T, class U>
     168             :     inline ::rtl::Allocator<U> & __stl_alloc_rebind (::rtl::Allocator<T> & a, U const *)
     169             :     {
     170             :         return (::rtl::Allocator<U>&)(a);
     171             :     }
     172             : }
     173             : 
     174             : /// @endcond
     175             : 
     176             : #endif /* INCLUDED_RTL_ALLOCATOR_HXX */
     177             : 
     178             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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