gnucash/libgnucash/engine/gnc-timezone.hpp
Richard Cohen 1cec0cb3f3 Use internal extern "C" { ... } for C++
- removes warnings compiling swig engine
...
[ 10%] Generating swig-engine.cpp
.../libgnucash/engine/engine-helpers.h:31: Warning 313: Unrecognized extern type "C++".
.../libgnucash/engine/gnc-date.h:83: Warning 313: Unrecognized extern type "C++".
.../libgnucash/engine/qofquery.h:90: Warning 302: Identifier 'QofQuery' redefined (ignored),
.../libgnucash/engine/gnc-option.hpp:55: Warning 302: previous definition of 'QofQuery'.
.../libgnucash/engine/gnc-commodity.h:56: Warning 313: Unrecognized extern type "C++".
.../libgnucash/engine/gncBusiness.h:40: Warning 313: Unrecognized extern type "C++".
.../libgnucash/engine/gncEntry.h:37: Warning 313: Unrecognized extern type "C++".
2023-01-23 18:40:01 +00:00

71 lines
3.0 KiB
C++

/********************************************************************\
* gnc-timezone.cpp - Retrieve timezone information from OS. *
* Copyright 2014 John Ralls <jralls@ceridwen.us> *
* Based on work done with Arnel Borja for GLib's gtimezone in 2012.*
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License as *
* published by the Free Software Foundation; either version 2 of *
* the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License*
* along with this program; if not, contact: *
* *
* Free Software Foundation Voice: +1-617-542-5942 *
* 51 Franklin Street, Fifth Floor Fax: +1-617-542-2652 *
* Boston, MA 02110-1301, USA gnu@gnu.org *
\********************************************************************/
#ifndef __GNC_TIMEZONE_HPP__
#define __GNC_TIMEZONE_HPP__
#include <platform.h>
#if PLATFORM(WINDOWS)
#include <windows.h>
#endif
#define BOOST_ERROR_CODE_HEADER_ONLY
#include <boost/date_time/local_time/local_time.hpp>
namespace gnc
{
namespace date
{}
}// Move these later
using TZ = boost::local_time::time_zone;
using TZ_Ptr = boost::local_time::time_zone_ptr;
using TZ_Entry = std::pair<int, TZ_Ptr>;
using TZ_Vector = std::vector<TZ_Entry>;
using time_zone_names = boost::local_time::time_zone_names;
class TimeZoneProvider
{
public:
// The default constructor provides the time zone for the current locale
TimeZoneProvider() : TimeZoneProvider (static_cast<std::string>("")) {}
TimeZoneProvider(const std::string& tzname); //create a provider for a specified TZ.
TimeZoneProvider(const TimeZoneProvider&) = delete;
TimeZoneProvider(const TimeZoneProvider&&) = delete;
TimeZoneProvider operator=(const TimeZoneProvider&) = delete;
TimeZoneProvider operator=(const TimeZoneProvider&&) = delete;
TZ_Ptr get (int year) const noexcept;
void dump() const noexcept;
static const unsigned int min_year; //1400
static const unsigned int max_year; //9999
private:
void parse_file(const std::string& tzname);
bool construct(const std::string& tzname);
TZ_Vector m_zone_vector;
#if PLATFORM(WINDOWS)
void load_windows_dynamic_tz(HKEY, time_zone_names);
void load_windows_classic_tz(HKEY, time_zone_names);
void load_windows_default_tz(void);
#endif
};
#endif //__GCN_TIMEZONE_HPP__