Replace usage of std::result_of with decltype

It's slated for removal in c++20

Fixes: QTBUG-82240
Change-Id: I7b35c151413b131ca49b2c09b6382efc3fc8ccb6
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
(cherry picked from commit fb6acf08bbd7a68d027282251747620b942bd1d6)
This commit is contained in:
Mårten Nordheim 2020-02-18 10:13:22 +01:00
parent 34369b5e90
commit 157be588f7

View File

@ -532,7 +532,7 @@ struct Q_CORE_EXPORT QMetaObject
static typename std::enable_if<!QtPrivate::FunctionPointer<Func>::IsPointerToMemberFunction
&& QtPrivate::FunctionPointer<Func>::ArgumentCount == -1
&& !std::is_convertible<Func, const char*>::value, bool>::type
invokeMethod(QObject *context, Func function, typename std::result_of<Func()>::type *ret)
invokeMethod(QObject *context, Func function, decltype(function()) *ret)
{
return invokeMethodImpl(context,
new QtPrivate::QFunctorSlotObjectWithNoArgs<Func, decltype(function())>(std::move(function)),