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Mateusz Pusz
2023-09-24 19:59:26 +02:00
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## mp-units
### 2.0.0 <small>WIP</small> { id="2.0.0" }
### 2.1.0 <small>WIP</small> { id="2.1.0" }
### 2.0.0 <small>September 24, 2023</small> { id="2.0.0" }
- `units` namespace renamed to `mp_units` (#317)
- header files in the `<mp-units/...>` rather then in `<units/...>` (#317)
- the downcasting facility is removed (#383, #211, #32)
- unified and simplified quantity creation (#274)
- Determining the best way to create a quantity (#413)
- V2 quantity_point (#414)
- determining the best way to create a quantity (#413)
- V2 `quantity_point` (#414)
- introduction of `quantity_spec` to store not only `dimension` but also additional information about quantities (#405)
- `quantity` now takes `reference` object, which aggregates `quantity_spec` and a `unit` and a `representation` type
- units, prefixes, dimensions, quantity specifications, and references are passed as NTTPs to templates and provide arithmetic operations and comparison
- expression templates consistently used in all derived types to increase the readability (#351, #166)
- derived dimensions are now factors of only base dimensions (#281)
- Interconvertibility of derived quantities (#427)
- convertibility of derived quantities (#427)
- dimensions, quantity specifications, units, and references are now composable, significantly reducing the number of definitions and resulting types
- heavily simplified unit systems definitions (no need to define unnamed derived units, systems-specific dimensions, aliases for quantities, concepts, UDLs, ... anymore)
- improved definition of all systems
- support for all (or at least most) ISO 80000 quantities
- support for ISO 80000 Part 3-6 quantities
- faster than lightspeed constants (#169)
- extensions to quantity formatting with `fmt`
- `quantity_kind` removed
- much easier and safe casting of unit with `operator[]` and `.number_in(Unit)`
- quantity can no longer be constructed with a raw value (#434)
- improved casting of unit with `.in(Unit)`, `.force_in(Unit)` for `quantity` and `quantity_spec`
- numerical value accessor safety improved with `.numerical_value_in(Unit)` and `.force_numerical_value_in(Unit)`
- `quantity` can no longer be constructed with a raw value (#434)
- Implicit construction of quantities from a value (#410)
- `quantity_point` can no longer be constructed with just a `quantity` and an explicit `PointOrigin` is always needed
- `ceil` and `floor` are dangerous (#432)
- quecto, ronto, ronna, quetta new SI prefixes support
- comparison against zero added (#487)
- documentation rewritten from scratch
- many smaller changes not possible to address with the previous design (#205, #210, #134)
### 0.8.0 <small>June 14, 2023</small> { id="0.8.0" }