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-rw-r--r--src/corelib/tools/qscopedvaluerollback.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/corelib/tools/qscopedvaluerollback.h b/src/corelib/tools/qscopedvaluerollback.h
index 53a31e4675..0ae3efd0c0 100644
--- a/src/corelib/tools/qscopedvaluerollback.h
+++ b/src/corelib/tools/qscopedvaluerollback.h
@@ -9,14 +9,16 @@
QT_BEGIN_NAMESPACE
template <typename T>
-class [[nodiscard]] QScopedValueRollback
+class QScopedValueRollback
{
public:
+ Q_NODISCARD_CTOR
explicit constexpr QScopedValueRollback(T &var)
: varRef(var), oldValue(var)
{
}
+ Q_NODISCARD_CTOR
explicit constexpr QScopedValueRollback(T &var, T value)
: varRef(var), oldValue(std::move(var)) // ### C++20: std::exchange(var, std::move(value))
{