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fix: ice_point is now defined with the integral offset from absolute_zero

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Fixes #539
This commit is contained in:
Mateusz Pusz
2024-01-05 11:56:55 +01:00
parent 4fdf1fc4c9
commit 5382fdbc5c
3 changed files with 3 additions and 3 deletions
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2
docs/users_guide/framework_basics/design_overview.md
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@@ -352,7 +352,7 @@ For example:
- the relative point origin can be defined in the following way:
```cpp
inline constexpr struct ice_point : relative_point_origin<absolute_zero + 273.15 * kelvin> {} ice_point;
inline constexpr struct ice_point : relative_point_origin<absolute_zero + 273'150 * milli<kelvin>> {} ice_point;
```

2
docs/users_guide/framework_basics/the_affine_space.md
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@@ -438,7 +438,7 @@ namespace si {
inline constexpr struct absolute_zero : absolute_point_origin<absolute_zero, isq::thermodynamic_temperature> {} absolute_zero;
inline constexpr struct zeroth_kelvin : decltype(absolute_zero) {} zeroth_kelvin;
inline constexpr struct ice_point : relative_point_origin<quantity_point{273.15 * kelvin}> {} ice_point;
inline constexpr struct ice_point : relative_point_origin<quantity_point{273'150 * milli<kelvin>}> {} ice_point;
inline constexpr struct zeroth_degree_Celsius : decltype(ice_point) {} zeroth_degree_Celsius;
}

2
src/systems/si/include/mp-units/systems/si/units.h
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@@ -78,7 +78,7 @@ inline constexpr struct weber : named_unit<"Wb", volt * second> {} weber;
inline constexpr struct tesla : named_unit<"T", weber / square(metre)> {} tesla;
inline constexpr struct henry : named_unit<"H", weber / ampere> {} henry;
inline constexpr struct ice_point : relative_point_origin<quantity_point{273.15 * kelvin}> {} ice_point;
inline constexpr struct ice_point : relative_point_origin<quantity_point{273'150 * milli<kelvin>}> {} ice_point;
inline constexpr struct zeroth_degree_Celsius : decltype(ice_point) {} zeroth_degree_Celsius;
inline constexpr struct degree_Celsius : named_unit<basic_symbol_text{"°C", "`C"}, kelvin, zeroth_degree_Celsius> {} degree_Celsius;