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Name renamed to symbol in a derived_unit

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Mateusz Pusz
2019-10-15 11:47:36 +02:00
parent 98b78c9a2c
commit 7e31dfe37e
3 changed files with 38 additions and 38 deletions
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22
doc/DESIGN.md
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@@ -242,7 +242,7 @@ struct unit : downcast_base<unit<D, R>> {
All units are created with a `derived_unit` helper:
```cpp
template<typename Child, fixed_string Name, typename...>
template<typename Child, fixed_string Symbol, typename...>
struct derived_unit;
```
@@ -259,8 +259,8 @@ to provide downcasting facility (described below).
- helper to create a base unit of a specified dimension
```cpp
template<typename Child, fixed_string Name, Dimension D>
struct derived_unit<Child, Name, D>;
template<typename Child, fixed_string Symbol, Dimension D>
struct derived_unit<Child, Symbol, D>;
```
```cpp
@@ -270,8 +270,8 @@ struct metre : derived_unit<metre, "m", length> {};
- helper to create other units for a specified dimension
```cpp
template<typename Child, fixed_string Name, Dimension D, Ratio R>
struct derived_unit<Child, Name, D, R>;
template<typename Child, fixed_string Symbol, Dimension D, Ratio R>
struct derived_unit<Child, Symbol, D, R>;
```
```cpp
@@ -281,8 +281,8 @@ struct yard : derived_unit<yard, "yd", length, ratio<9'144, 10'000>> {};
- helper to create a unit with a SI prefix
```cpp
template<typename Child, fixed_string Name, Unit U>
struct derived_unit<Child, Name, U>;
template<typename Child, fixed_string Symbol, Unit U>
struct derived_unit<Child, Symbol, U>;
```
```cpp
@@ -293,8 +293,8 @@ struct kilometre : derived_unit<kilometre, "km", kilo<metre>> {};
of units of base dimensions
```cpp
template<typename Child, fixed_string Name, Dimension D, Unit U, Unit... Us>
struct derived_unit<Child, Name, D, U, Us...>;
template<typename Child, fixed_string Symbol, Dimension D, Unit U, Unit... Us>
struct derived_unit<Child, Symbol, D, U, Us...>;
```
```cpp
@@ -554,8 +554,8 @@ struct derived_dimension : downcast_helper<Child, detail::make_dimension_t<Es...
```
```cpp
template<typename Child, fixed_string Name, Dimension D>
struct derived_unit<Child, Name, D, R> : downcast_helper<Child, unit<D, ratio<1>>> {};
template<typename Child, fixed_string Symbol, Dimension D>
struct derived_unit<Child, Symbol, D, R> : downcast_helper<Child, unit<D, ratio<1>>> {};
```
With such CRTP types the only thing the user has to do to register a new type to the downcasting

52
src/include/units/unit.h
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@@ -119,50 +119,50 @@ namespace units {
// TODO gcc:92101
// Gated by the following gcc bug
// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92101
// template<typename Child, fixed_string Name, typename...>
// template<typename Child, fixed_string Symbol, typename...>
// struct derived_unit;
// template<typename Child, fixed_string Name, Dimension D>
// struct derived_unit<Child, Name, D> : downcast_helper<Child, unit<D, ratio<1>>> {
// static constexpr auto name = Name;
// template<typename Child, fixed_string Symbol, Dimension D>
// struct derived_unit<Child, Symbol, D> : downcast_helper<Child, unit<D, ratio<1>>> {
// static constexpr auto symbol = Symbol;
// };
// template<typename Child, fixed_string Name, Dimension D, Ratio R>
// struct derived_unit<Child, Name, D, R> : downcast_helper<Child, unit<D, R>> {
// static constexpr auto name = Name;
// template<typename Child, fixed_string Symbol, Dimension D, Ratio R>
// struct derived_unit<Child, Symbol, D, R> : downcast_helper<Child, unit<D, R>> {
// static constexpr auto symbol = Symbol;
// };
// template<typename Child, fixed_string Name, Unit U>
// struct derived_unit<Child, Name, U> : downcast_helper<Child, U> {
// static constexpr auto name = Name;
// template<typename Child, fixed_string Symbol, Unit U>
// struct derived_unit<Child, Symbol, U> : downcast_helper<Child, U> {
// static constexpr auto symbol = Symbol;
// };
// template<typename Child, fixed_string Name, Dimension D, Unit U, Unit... Us>
// struct derived_unit<Child, Name, D, U, Us...> : downcast_helper<Child, detail::make_derived_unit<D, U, Us...>> {
// static constexpr auto name = Name;
// template<typename Child, fixed_string Symbol, Dimension D, Unit U, Unit... Us>
// struct derived_unit<Child, Symbol, D, U, Us...> : downcast_helper<Child, detail::make_derived_unit<D, U, Us...>> {
// static constexpr auto symbol = Symbol;
// };
template<typename Child, typename Name, typename...>
template<typename Child, typename Symbol, typename...>
struct derived_unit;
template<typename Child, typename Name, Dimension D>
struct derived_unit<Child, Name, D> : downcast_helper<Child, unit<D, ratio<1>>> {
static constexpr auto name = Name::c_str();
template<typename Child, typename Symbol, Dimension D>
struct derived_unit<Child, Symbol, D> : downcast_helper<Child, unit<D, ratio<1>>> {
static constexpr auto symbol = Symbol::c_str();
};
template<typename Child, typename Name, Dimension D, Ratio R>
struct derived_unit<Child, Name, D, R> : downcast_helper<Child, unit<D, R>> {
static constexpr auto name = Name::c_str();
template<typename Child, typename Symbol, Dimension D, Ratio R>
struct derived_unit<Child, Symbol, D, R> : downcast_helper<Child, unit<D, R>> {
static constexpr auto symbol = Symbol::c_str();
};
template<typename Child, typename Name, Unit U>
struct derived_unit<Child, Name, U> : downcast_helper<Child, U> {
static constexpr auto name = Name::c_str();
template<typename Child, typename Symbol, Unit U>
struct derived_unit<Child, Symbol, U> : downcast_helper<Child, U> {
static constexpr auto symbol = Symbol::c_str();
};
template<typename Child, typename Name, Dimension D, Unit U, Unit... Us>
struct derived_unit<Child, Name, D, U, Us...> : downcast_helper<Child, detail::make_derived_unit<D, U, Us...>> {
static constexpr auto name = Name::c_str();
template<typename Child, typename Symbol, Dimension D, Unit U, Unit... Us>
struct derived_unit<Child, Symbol, D, U, Us...> : downcast_helper<Child, detail::make_derived_unit<D, U, Us...>> {
static constexpr auto symbol = Symbol::c_str();
};
// SI prefixes

2
test/unit_test/runtime/print_helpers.h
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@@ -30,7 +30,7 @@ namespace units {
template<typename Unit, typename Rep>
std::ostream& operator<<(std::ostream& os, const quantity<Unit, Rep>& value)
{
return os << value.count() << Unit::name;
return os << value.count() << Unit::symbol;
}
}