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No functional change, just using the already-existing named constraint
instead of more enable_if fiddling.
Amends 29b65c98e720056e87334ce88a683969e57efd3d.
Pick-to: 6.7 6.6 6.5
Change-Id: Idae4962834f14e2a5273099b5611ebcbb2a54447
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
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Drop the remove_cvref_t (T is already decayed by way of take-by-value)
and apply De Morgan's Law.
No functional change, just fewer templates to instantiate.
Amends 29b65c98e720056e87334ce88a683969e57efd3d.
Pick-to: 6.7 6.6 6.5
Change-Id: I0c0f8c4a288145d05636fb053cc260a917fcc4c5
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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Task-number: QTBUG-115777
Pick-to: 6.6 6.5
Change-Id: Icda59c33ae8c92460c7cb06e204c6b1926b82f66
Reviewed-by: Krzysztof Sommerfeld <krzysztof.sommerfeld@siili.com>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
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The original is defined in <type_traits>, not <functional>.
Pick-to: 6.5
Change-Id: I596e56f64d2eed609ad2f7e6f03ae006afaa2fa9
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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In general, we can't make the qNN types behave exactly like their
C++NN std counter-parts, because their exact semantics and
implementation may depend on C++NN language features, while qNN are
back-ports to C++ standards older than NN.
Adjust the warning message accordingly.
Thanks to Eddy for noticing.
Pick-to: 6.4
Change-Id: I8533214549f2140a99e2216e3bcd979263fe100c
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
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This reverts commit b9cce12e76796962e5e5ad0d5408370af56af459, which
broke
function_ref<void(int)> f = [](int i) { return i; };
ie. swallowing of return types.
We could maybe implement the same without invoke_r, with the same
manual if-constexpr that invoke_r has, but it would be a pointless
duplication across the two thunks we have, so just use invoke_r.
Add tests.
Pick-to: 6.4
Task-number: QTBUG-103739
Change-Id: I6034f05d813c06a25e8058ded5b6b62f3ca858b4
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
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Since P0792r8, pointers to members are no longer supported, which
means we don't need to use std::invoke anymore.
Remove std::invoke in favor of traditional function call syntax, which
should be faster to compile, too.
Change-Id: I2ec3888795471f345ded36bb564d35ac0de29068
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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This is an implementation of function_ref, which has been proposed for
inclusion into C++23, but has not been accepted, yet, which is why we
place it in namespace qxp (for eXPerimental) instead of q23.
The implementation is based on wg21.link/P0792r9, which, at the time
of writing, is the latest revision of the paper. It will be used in
both QTestLib and qmldom.
Fixes: QTBUG-103739
Change-Id: I52723eca28f7ac02ce7ce51928361d81ae5c92b1
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
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