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176 lines
5.0 KiB
176 lines
5.0 KiB
/* /////////////////////////////////////////////////////////////////////////
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* File: stlsoft/meta/add_qualifier.hpp
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*
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* Purpose: Adds a const or volatile qualifier to a type.
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*
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* Created: 30th December 2005
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* Updated: 10th August 2009
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*
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* Home: http://stlsoft.org/
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*
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* Copyright (c) 2005-2009, Matthew Wilson and Synesis Software
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* - Neither the name(s) of Matthew Wilson and Synesis Software nor the names of
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* any contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* ////////////////////////////////////////////////////////////////////// */
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/** \file stlsoft/meta/add_qualifier.hpp
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*
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* \brief [C++ only] Definition of the stlsoft::add_const,
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* stlsoft::add_volatile, stlsoft::add_const_ref and
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* stlsoft::add_volatile_ref meta-programming type adjuster components
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* (\ref group__library__meta "Template Meta-programming" Library).
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*/
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#ifndef STLSOFT_INCL_STLSOFT_META_HPP_ADD_QUALIFIER
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#define STLSOFT_INCL_STLSOFT_META_HPP_ADD_QUALIFIER
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#ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION
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# define STLSOFT_VER_STLSOFT_META_HPP_ADD_QUALIFIER_MAJOR 1
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# define STLSOFT_VER_STLSOFT_META_HPP_ADD_QUALIFIER_MINOR 1
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# define STLSOFT_VER_STLSOFT_META_HPP_ADD_QUALIFIER_REVISION 2
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# define STLSOFT_VER_STLSOFT_META_HPP_ADD_QUALIFIER_EDIT 11
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#endif /* !STLSOFT_DOCUMENTATION_SKIP_SECTION */
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/* /////////////////////////////////////////////////////////////////////////
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* Includes
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*/
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#ifndef STLSOFT_INCL_STLSOFT_H_STLSOFT
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# include <stlsoft/stlsoft.h>
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#endif /* !STLSOFT_INCL_STLSOFT_H_STLSOFT */
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/* /////////////////////////////////////////////////////////////////////////
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* Namespace
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*/
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#ifndef _STLSOFT_NO_NAMESPACE
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namespace stlsoft
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{
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#endif /* _STLSOFT_NO_NAMESPACE */
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/* /////////////////////////////////////////////////////////////////////////
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* Classes
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*/
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/** \brief Adds <code>const</code> qualifier to a type.
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*
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* \ingroup group__library__meta
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*/
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template <ss_typename_param_k T>
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struct add_const
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{
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typedef const T type;
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};
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#ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION
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STLSOFT_TEMPLATE_SPECIALISATION
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struct add_const<void>
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{
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typedef void type;
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};
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#endif /* !STLSOFT_DOCUMENTATION_SKIP_SECTION */
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/** \brief Adds <code>volatile</code> qualifier to a type.
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*
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* \ingroup group__library__meta
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*/
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template <ss_typename_param_k T>
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struct add_volatile
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{
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typedef volatile T type;
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};
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#ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION
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STLSOFT_TEMPLATE_SPECIALISATION
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struct add_volatile<void>
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{
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typedef void type;
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};
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#endif /* !STLSOFT_DOCUMENTATION_SKIP_SECTION */
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/** \brief Adds <code>const&</code> qualifier to a type.
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*
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* \ingroup group__library__meta
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*/
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template <ss_typename_param_k T>
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struct add_const_ref
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{
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typedef T const& type;
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};
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#ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION
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STLSOFT_TEMPLATE_SPECIALISATION
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struct add_const_ref<void>
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{
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typedef void type;
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};
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#endif /* !STLSOFT_DOCUMENTATION_SKIP_SECTION */
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/** \brief Adds <code>volatile&</code> qualifier to a type.
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*
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* \ingroup group__library__meta
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*/
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template <ss_typename_param_k T>
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struct add_volatile_ref
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{
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typedef volatile T& type;
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};
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#ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION
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STLSOFT_TEMPLATE_SPECIALISATION
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struct add_volatile_ref<void>
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{
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typedef void type;
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};
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#endif /* !STLSOFT_DOCUMENTATION_SKIP_SECTION */
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/* ////////////////////////////////////////////////////////////////////// */
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#ifndef _STLSOFT_NO_NAMESPACE
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} // namespace stlsoft
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#endif /* _STLSOFT_NO_NAMESPACE */
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/* ////////////////////////////////////////////////////////////////////// */
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#endif /* !STLSOFT_INCL_STLSOFT_META_HPP_ADD_QUALIFIER */
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/* ///////////////////////////// end of file //////////////////////////// */
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