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Scalar concept extended

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Scalar concept extended with types that are not constructible from and integral type
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Mateusz Pusz
2020-03-25 22:06:07 +01:00
parent c2b851c92b
commit 9fbf17be06
2 changed files with 32 additions and 6 deletions
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docs/reference/concepts.rst
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@@ -70,4 +70,11 @@ Concepts
.. concept:: template<typename T> Scalar
A concept matching non-Quantity types. Satisfied by types that satisfy :expr:`(!Quantity<T>) && (!WrappedQuantity<T>) && std::regular<T>`.
A concept matching non-Quantity types. Satisfied by types that match
:expr:`(!Quantity<T>) && (!WrappedQuantity<T>) && std::regular<T>` and satisfy one of the
following:
- if type :expr:`T` is constructible from ``std::int64_t`` (which is the type that stores
the elements of `ratio`), :expr:`T * T` and :expr:`T / T` must be valid,
- otherwise, :expr:`T * std::int64_t`, :expr:`std::int64_t * T`, and :expr:`T / std::int64_t`
must be valid.