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operator- constraints fixed

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Mateusz Pusz
2019-11-16 18:28:13 +01:00
parent 9c6229302d
commit d4976caf1d
1 changed files with 2 additions and 2 deletions
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4
src/include/units/quantity.h
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@@ -258,8 +258,8 @@ namespace units {
template<typename T = Rep>
[[nodiscard]] constexpr quantity operator-() const
// requires std::magma<std::ranges::negate, T, T>
// requires std::magma<std::ranges::negate, rep, rep> // TODO gated by gcc-9 (fixed in gcc-10)
requires std::regular_invocable<std::ranges::negate, T>
// requires std::regular_invocable<std::ranges::negate, rep> // TODO gated by gcc-9 (fixed in gcc-10)
{
return quantity(-count());
}