time.h

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//--------------------------------------------------------------------------------------------------
//
//  UnitConversion: A compile-time c++23 unit conversion library with no dependencies
//
//--------------------------------------------------------------------------------------------------
//
// The MIT License (MIT)
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this software
// and associated documentation files (the "Software"), to deal in the Software without
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// distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
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// Copyright (c) 2016 Nic Holthaus
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//
// ATTRIBUTION:
// Parts of this work have been adapted from:
// http://stackoverflow.com/questions/35069778/create-comparison-trait-for-template-classes-whose-parameters-are-in-a-different
// http://stackoverflow.com/questions/28253399/check-traits-for-all-variadic-template-arguments/28253503
// http://stackoverflow.com/questions/36321295/rational-approximation-of-square-root-of-stdratio-at-compile-time?noredirect=1#comment60266601_36321295
// https://github.com/swatanabe/cppnow17-units
//
//--------------------------------------------------------------------------------------------------
//
//
//--------------------------------------------------------------------------------------------------
 
#pragma once
 
#ifndef units_time_h_
#define units_time_h_
 
#include <units/core.h>

#define UNIT_ADD_WITH_PLURAL_TAG(namespaceName, namePlural, abbreviation, /*definition*/...)                                                                   \
    UNIT_ADD_STRONG_CONVERSION_FACTOR(namespaceName, namePlural, __VA_ARGS__)                                                                                  \
    UNIT_ADD_UNIT_DEFINITION(namespaceName, namePlural, __VA_ARGS__)                                                                                           \
    UNIT_ADD_NAME(namespaceName, namePlural, abbreviation)                                                                                                     \
    UNIT_REGISTER_NAMED_CLASS(namespaceName, namePlural)                                                                                                       \
    UNIT_ADD_LITERALS(namespaceName, namePlural, abbreviation)
 
namespace units
{
    UNIT_ADD_WITH_METRIC_PREFIXES(time, seconds, s, conversion_factor<std::ratio<1>, dimension::time>)
    UNIT_ADD_WITH_PLURAL_TAG(time, minutes, min, conversion_factor<std::ratio<60>, seconds_>)
    UNIT_ADD(time, hours, hr, conversion_factor<std::ratio<60>, minutes<>>)
    UNIT_ADD(time, days, d, conversion_factor<std::ratio<24>, hours_>)
    UNIT_ADD(time, weeks, wk, conversion_factor<std::ratio<7>, days_>)
    UNIT_ADD(time, years, yr, conversion_factor<std::ratio<365>, days_>)
    UNIT_ADD(time, julian_years, a_j, conversion_factor<std::ratio<31557600>, seconds_>)
    UNIT_ADD(time, gregorian_years, a_g, conversion_factor<std::ratio<31556952>, seconds_>)
 
    UNIT_ADD(time, fortnights, fn, conversion_factor<std::ratio<14>, days_>)
    UNIT_ADD(time, decades, dec, conversion_factor<std::ratio<10>, julian_years<>>)
    UNIT_ADD(time, centuries, cent, conversion_factor<std::ratio<100>, julian_years<>>)
    UNIT_ADD(time, millennia, kyr, conversion_factor<std::ratio<1000>, julian_years<>>)
 
    UNIT_ADD_DIMENSION_TRAIT(time, Time)
} // namespace units
 
#endif // units_time_h_