http://llvm.org/bugs/show_bug.cgi?id=9783
Summary: Differs with GCC for time of destroying temporaries
when initializing non-class object.
Product: clang
Version: trunk
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P
Component: C++
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected], [email protected]
GCC prints "true", while clang prints "false" for this:
struct A {
bool &b;
A(bool &b):b(b) { }
~A() { std::cout << b; }
bool yield() { return true; }
};
bool b = A(b).yield();
int main() { }
I cannot see what the Standard requires for this; it appears to be unspecified
or undefined (because the write to "b" doesn't appear to be part of any
expression/evaluation, it may be interleaved with the read of "b" in ~A).
The IRC channel was discussing this. The SO community engaged in discussing it
too; see http://stackoverflow.com/q/5760866/34509.
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