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| author | Marc Mutz <marc.mutz@qt.io> | 2023-03-01 14:24:22 +0100 |
|---|---|---|
| committer | Marc Mutz <marc.mutz@qt.io> | 2023-03-02 04:49:48 +0000 |
| commit | c6dbae9550e3819a3e1ade1bf06f5d9cb030d561 (patch) | |
| tree | a7a21b50403e93ecbd8537bcab141a57c4ab465d /tests/auto/guiapplauncher | |
| parent | 5573e2d6ac09ff8b8f23edca93f601ff7679fa3c (diff) | |
qobjectdefs.h: properly disable rvalue qReturnArg()
template <typename T> qReturnArg(T&&) is an unconstrained perfect
forwarder, and will "win" for everything for which `T&` is not an
equal match. e.g. a volatile T.
Restrict the deleted overload to actual rvalues. We don't need to use
`const volatile T&&`, because rvalues never bind to `T&`, we just need
to get off using a universal reference, and adding const does that.
As a drive-by, change the deleted overload's return type to void, to
mimic std::as_const(), the prototype for rvalue-deleted function
overloads.
Pick-to: 6.5
Change-Id: If4fbc311677b993488859b2c4e226b94daed71fe
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Diffstat (limited to 'tests/auto/guiapplauncher')
0 files changed, 0 insertions, 0 deletions