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concepts: add scalar, enumeration, and iterable concepts

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This commit is contained in:
Danny Robson 2020-02-24 14:37:32 +11:00
parent 8f39ed706d
commit 455b3b973f
1 changed files with 12 additions and 1 deletions
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13
concepts.hpp
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@ -232,6 +232,12 @@ namespace cruft::concepts {
template <typename T>
concept arithmetic = std::is_arithmetic_v<T>;
template <typename T>
concept scalar = std::is_scalar_v<T>;
template <typename T>
concept enumeration = std::is_enum_v<T>;
/// A type that supports arithmetic operators.
template <typename T>
@ -244,6 +250,11 @@ namespace cruft::concepts {
};
/// Anything that can be looped over using begin/end
template <typename T>
concept scalar = std::is_scalar_v<T>;
concept iterable = requires (T t)
{
{ std::begin (t) } -> legacy_iterator;
{ std::end (t) } -> legacy_iterator;
};
}