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| author | Ivan Solovev <ivan.solovev@qt.io> | 2023-09-26 17:11:03 +0200 |
|---|---|---|
| committer | Ivan Solovev <ivan.solovev@qt.io> | 2023-12-07 06:16:23 +0100 |
| commit | 4b755bc11a8eadd156c65b7474c11e3ce822c6f1 (patch) | |
| tree | ababb9850d6b71512481577749e3bff992414dde /src/corelib/global/qcomparehelpers.h | |
| parent | d677a454b208dfccc16c845d114575a414ca284f (diff) | |
Teach Qt::compareThreeWay() to support native float16 types
Provide a custom variable template to detect float types and
specialize it for QtPrivate::NativeFloat16Type.
This will allow to enable three-way comparison for qfloat16.
Task-number: QTBUG-104113
Change-Id: Id12c42c86f8dc9e233fe39776b0f0e28088de9e1
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
Diffstat (limited to 'src/corelib/global/qcomparehelpers.h')
| -rw-r--r-- | src/corelib/global/qcomparehelpers.h | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/src/corelib/global/qcomparehelpers.h b/src/corelib/global/qcomparehelpers.h index 9c9da2c7d9..ad21d461b9 100644 --- a/src/corelib/global/qcomparehelpers.h +++ b/src/corelib/global/qcomparehelpers.h @@ -341,6 +341,14 @@ template <typename T> constexpr bool IsIntegralType_v = std::numeric_limits<std::remove_const_t<T>>::is_specialized && std::numeric_limits<std::remove_const_t<T>>::is_integer; +template <typename T> +constexpr bool IsFloatType_v = std::is_floating_point_v<T>; + +#if QFLOAT16_IS_NATIVE +template <> +constexpr bool IsFloatType_v<QtPrivate::NativeFloat16Type> = true; +#endif + } // namespace QtPrivate namespace Qt { @@ -353,14 +361,14 @@ using if_integral = template <typename T, typename U> using if_floating_point = - std::enable_if_t<std::conjunction_v<std::is_floating_point<std::remove_reference_t<T>>, - std::is_floating_point<std::remove_reference_t<U>>>, + std::enable_if_t<QtPrivate::IsFloatType_v<std::remove_reference_t<T>> + && QtPrivate::IsFloatType_v<std::remove_reference_t<U>>, bool>; template <typename T, typename U> using if_integral_and_floating_point = std::enable_if_t<QtPrivate::IsIntegralType_v<std::remove_reference_t<T>> - && std::is_floating_point_v<std::remove_reference_t<U>>, + && QtPrivate::IsFloatType_v<std::remove_reference_t<U>>, bool>; template <typename T, typename U> |