128 lines
2.8 KiB
C++
128 lines
2.8 KiB
C++
//////////////////////////////////////////////////////////////////////////////
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//
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// (C) Copyright Ion Gaztanaga 2020-2021. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org/libs/interprocess for documentation.
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//
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//////////////////////////////////////////////////////////////////////////////
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#ifndef BOOST_INTERPROCESS_DETAIL_CHAR_WCHAR_HOLDER_HPP
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#define BOOST_INTERPROCESS_DETAIL_CHAR_WCHAR_HOLDER_HPP
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#ifndef BOOST_CONFIG_HPP
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# include <boost/config.hpp>
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#endif
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#
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#if defined(BOOST_HAS_PRAGMA_ONCE)
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# pragma once
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#endif
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#include <boost/interprocess/detail/config_begin.hpp>
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#include <boost/interprocess/detail/workaround.hpp>
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#include <cwchar>
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#include <cstring>
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namespace boost {
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namespace interprocess {
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class char_wchar_holder
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{
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public:
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char_wchar_holder()
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: m_str(), m_is_wide()
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{
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m_str.n = 0;
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}
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char_wchar_holder(const char *nstr)
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: m_str(), m_is_wide()
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{
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m_str.n = new char [std::strlen(nstr)+1];
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std::strcpy(m_str.n, nstr);
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}
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char_wchar_holder(const wchar_t *wstr)
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: m_str(), m_is_wide(true)
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{
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m_str.w = new wchar_t [std::wcslen(wstr)+1];
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std::wcscpy(m_str.w, wstr);
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}
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char_wchar_holder& operator=(const char *nstr)
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{
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char *tmp = new char [std::strlen(nstr)+1];
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this->delete_mem();
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m_str.n = tmp;
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std::strcpy(m_str.n, nstr);
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return *this;
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}
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char_wchar_holder& operator=(const wchar_t *wstr)
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{
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wchar_t *tmp = new wchar_t [std::wcslen(wstr)+1];
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this->delete_mem();
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m_str.w = tmp;
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std::wcscpy(m_str.w, wstr);
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return *this;
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}
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char_wchar_holder& operator=(const char_wchar_holder &other)
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{
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if (other.m_is_wide)
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*this = other.getn();
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else
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*this = other.getw();
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return *this;
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}
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~char_wchar_holder()
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{
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this->delete_mem();
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}
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wchar_t *getw() const
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{ return m_is_wide ? m_str.w : 0; }
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char *getn() const
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{ return !m_is_wide ? m_str.n : 0; }
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void swap(char_wchar_holder& other)
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{
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char_wchar tmp;
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std::memcpy(&tmp, &m_str, sizeof(char_wchar));
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std::memcpy(&m_str, &other.m_str, sizeof(char_wchar));
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std::memcpy(&other.m_str, &tmp, sizeof(char_wchar));
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//
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bool b_tmp(m_is_wide);
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m_is_wide = other.m_is_wide;
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other.m_is_wide = b_tmp;
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}
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private:
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void delete_mem()
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{
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if(m_is_wide)
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delete [] m_str.w;
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else
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delete [] m_str.n;
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}
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union char_wchar
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{
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char *n;
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wchar_t *w;
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} m_str;
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bool m_is_wide;
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};
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} //namespace interprocess {
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} //namespace boost {
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#include <boost/interprocess/detail/config_end.hpp>
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#endif //BOOST_INTERPROCESS_DETAIL_CHAR_WCHAR_HOLDER_HPP
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