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struct scoped_lock
{
scoped_lock() {}
~scoped_lock() {}
};
#define SCOPED_LOCK_MACRO(m) scoped_lock()
struct trivial_scoped_lock
{
trivial_scoped_lock() {}
};
scoped_lock test()
{
scoped_lock(); // misc-unused-raii warning!
SCOPED_LOCK_MACRO(); // no warning for macros
trivial_scoped_lock(); // no warning for trivial objects without destructors
return scoped_lock(); // no warning for return values
}