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Copy pathquantity.h
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321 lines (262 loc) · 7.5 KB
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/*
Copyright (c) 2020, Robin Zimmeck <robin@robin-zimmeck.de>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
This software is provided by the copyright holders and contributors "as is"
and any express or implied warranties, including, but not limited to, the
implied warranties of merchantability and fitness for a particular purpose are
disclaimed. In no event shall the copyright holder or contributors be liable
for any direct, indirect, incidental, special, exemplary, or consequential
damages (including, but not limited to, procurement of substitute goods or
services; loss of use, data, or profits; or business interruption) however
caused and on any theory of liability, whether in contract, strict liability,
or tort (including negligence or otherwise) arising in any way out of the use
of this software, even if advised of the possibility of such damage.
*/
#pragma once
#include "unit.h"
#include <type_traits>
namespace minisi
{
using dimensionless_t = quantity_t<dimensionlessUnit_t>;
template<typename Unit>
class quantity_t
{
public:
using unit_t = Unit;
quantity_t();
template<typename = std::enable_if<std::is_same_v<Unit, dimensionless_t>>>
quantity_t(double);
// value access
static quantity_t from_value(double);
double value() const;
// arithmetic operators
quantity_t operator+() const;
quantity_t operator-() const;
quantity_t operator+(quantity_t) const;
quantity_t operator-(quantity_t) const;
template<typename ArgUnit>
quantity_t<unit_product_t<Unit, ArgUnit>>
operator*(quantity_t<ArgUnit>) const;
template<typename ArgUnit>
quantity_t<unit_quotient_t<Unit, ArgUnit>>
operator/(quantity_t<ArgUnit>) const;
// arithmetic assignment operators
quantity_t &operator+=(quantity_t);
quantity_t &operator-=(quantity_t);
quantity_t &operator*=(dimensionless_t);
quantity_t &operator/=(dimensionless_t);
quantity_t &operator*=(double);
quantity_t &operator/=(double);
// comparison operators
bool operator== (quantity_t) const;
bool operator!= (quantity_t) const;
bool operator< (quantity_t) const;
bool operator> (quantity_t) const;
bool operator<= (quantity_t) const;
bool operator>= (quantity_t) const;
private:
quantity_t(double, int);
double m_value;
};
// free operators
template<typename Unit>
quantity_t<Unit>
operator*(quantity_t<Unit>, double);
template<typename Unit>
quantity_t<Unit>
operator*(double, quantity_t<Unit>);
template<typename Unit>
quantity_t<Unit>
operator/(quantity_t<Unit>, double);
template<typename Unit>
quantity_t<unit_quotient_t<dimensionlessUnit_t, Unit>>
operator/(double, quantity_t<Unit>);
// =================================================================================================
// definition
template<typename Unit>
quantity_t<Unit>::quantity_t()
: m_value{}
{
}
t
8000
emplate<typename Unit>
template<typename>
quantity_t<Unit>::quantity_t(double value)
: m_value{value}
{
}
template<typename Unit>
quantity_t<Unit>::quantity_t(double value,
int)
: m_value{value}
{
}
template<typename Unit>
auto
quantity_t<Unit>::from_value(double value) -> quantity_t
{
return {value, 0};
}
template<typename Unit>
auto
quantity_t<Unit>::value() const -> double
{
return m_value;
}
// -------------------------------------------------------------------------------------------------
// arithmetic operators
template<typename Unit>
auto
quantity_t<Unit>::operator+() const -> quantity_t
{
return *this;
}
template<typename Unit>
auto
quantity_t<Unit>::operator-() const -> quantity_t
{
return {-m_value};
}
template<typename Unit>
auto
quantity_t<Unit>::operator+(quantity_t arg) const -> quantity_t
{
return {m_value + arg.m_value};
}
template<typename Unit>
auto
quantity_t<Unit>::operator-(quantity_t arg) const -> quantity_t
{
return {m_value - arg.m_value};
}
template<typename Unit>
template<typename ArgUnit>
quantity_t<unit_product_t<Unit, ArgUnit>>
quantity_t<Unit>::operator*(quantity_t<ArgUnit> arg) const
{
return quantity_t<unit_product_t<Unit, ArgUnit>>::from_value(m_value * arg.value());
}
template<typename Unit>
template<typename ArgUnit>
quantity_t<unit_quotient_t<Unit, ArgUnit>>
quantity_t<Unit>::operator/(quantity_t<ArgUnit> arg) const
{
return quantity_t<unit_quotient_t<Unit, ArgUnit>>::from_value(m_value / arg.value());
}
// -------------------------------------------------------------------------------------------------
// arithmetic assignment operators
template<typename Unit>
auto
quantity_t<Unit>::operator+=(quantity_t other) -> quantity_t &
{
m_value += other.m_value;
return *this;
}
template<typename Unit>
auto
quantity_t<Unit>::operator-=(quantity_t other) -> quantity_t &
{
m_value -= other.m_value;
return *this;
}
template<typename Unit>
auto
quantity_t<Unit>::operator*=(dimensionless_t other) -> quantity_t &
{
m_value *= other.value();
return *this;
}
template<typename Unit>
auto
quantity_t<Unit>::operator/=(dimensionless_t other) -> quantity_t &
{
m_value /= other.value();
return *this;
}
template<typename Unit>
auto
quantity_t<Unit>::operator*=(double other) -> quantity_t &
{
m_value *= other;
return *this;
}
template<typename Unit>
auto
quantity_t<Unit>::operator/=(double other) -> quantity_t &
{
m_value /= other;
return *this;
}
// -------------------------------------------------------------------------------------------------
// comparison operators
template<typename Unit>
bool
quantity_t<Unit>::operator== (quantity_t other) const
{
return m_value == other.m_value;
}
template<typename Unit>
bool
quantity_t<Unit>::operator!= (quantity_t other) const
{
return m_value != other.m_value;
}
template<typename Unit>
bool
quantity_t<Unit>::operator< (quantity_t other) const
{
return m_value < other.m_value;
}
template<typename Unit>
bool
quantity_t<Unit>::operator> (quantity_t other) const
{
return m_value > other.m_value;
}
template<typename Unit>
bool
quantity_t<Unit>::operator<= (quantity_t other) const
{
return m_value <= other.m_value;
}
template<typename Unit>
bool
quantity_t<Unit>::operator>= (quantity_t other) const
{
return m_value >= other.m_value;
}
// -------------------------------------------------------------------------------------------------
// free operators
template<typename Unit>
quantity_t<Unit>
operator*(quantity_t<Unit> lhs, double rhs)
{
return quantity_t<Unit>::from_value(lhs.value() * rhs);
}
template<typename Unit>
quantity_t<Unit>
operator*(double lhs, quantity_t<Unit> rhs)
{
return quantity_t<Unit>::from_value(lhs * rhs.value());
}
template<typename Unit>
quantity_t<Unit>
operator/(quantity_t<Unit> lhs, double rhs)
{
return quantity_t<Unit>::from_value(lhs.value() / rhs);
}
template<typename Unit>
quantity_t<unit_quotient_t<dimensionlessUnit_t, Unit>>
operator/(double lhs, quantity_t<Unit> rhs)
{
return quantity_t<unit_quotient_t<dimensionlessUnit_t, Unit>>::from_value(lhs / rhs.value());
}
} // namespace minisi