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author | Sona Kurazyan <sona.kurazyan@qt.io> | 2020-12-22 13:06:25 +0100 |
---|---|---|
committer | Qt Cherry-pick Bot <cherrypick_bot@qt-project.org> | 2020-12-24 10:04:56 +0000 |
commit | b02ed9696f88d4e44b6e03265c2aa8f41506cf5c (patch) | |
tree | 63b69f1bd82a1446966d6580cef7427119319ae8 /src/concurrent/doc/snippets/code | |
parent | b14a33ff671b555b3677a012867489e174cb98e7 (diff) |
Document that QtConcurrent::run doesn't support overloaded functions
After improving QtConcurrent::run() to use parameter packs for the
arguments (see c977e74afd18afff8729070f631e6b7a3f2887f5), calling
overloaded functions is ambiguous. Updated the porting guide and the
documentation to mention this and describe possible workarounds.
Task-number: QTBUG-89648
Change-Id: I4c1f996ae67bce8c13cc1f99f54240295db6ae1d
Reviewed-by: Jarek Kobus <jaroslaw.kobus@qt.io>
(cherry picked from commit f1f4fd16fdd219701261d305e6d9f7abcb8bf4a9)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
Diffstat (limited to 'src/concurrent/doc/snippets/code')
-rw-r--r-- | src/concurrent/doc/snippets/code/src_concurrent_qtconcurrentrun.cpp | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/concurrent/doc/snippets/code/src_concurrent_qtconcurrentrun.cpp b/src/concurrent/doc/snippets/code/src_concurrent_qtconcurrentrun.cpp index bf39119c51..59b65dcb3a 100644 --- a/src/concurrent/doc/snippets/code/src_concurrent_qtconcurrentrun.cpp +++ b/src/concurrent/doc/snippets/code/src_concurrent_qtconcurrentrun.cpp @@ -230,3 +230,21 @@ run<double>(f); // this will select the 2nd overload // run(f); // error, both candidate overloads potentially match //! [14] +//! [15] +void foo(int arg); +void foo(int arg1, int arg2); +... +QFuture<void> future = QtConcurrent::run(foo, 42); +//! [15] + +//! [16] +QFuture<void> future = QtConcurrent::run([] { foo(42); }); +//! [16] + +//! [17] +QFuture<void> future = QtConcurrent::run(static_cast<void(*)(int)>(foo), 42); +//! [17] + +//! [18] +QFuture<void> future = QtConcurrent::run(qOverload<int>(foo), 42); +//! [18] |