http://llvm.org/bugs/show_bug.cgi?id=15626
Bug ID: 15626
Summary: gnu extension "?:" with enums not faithful
Product: clang
Version: 3.2
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P
Component: C++
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Classification: Unclassified
$ clang gnutest.cc
gnutest.cc:7:10: error: cannot initialize return object of type 'Howdy' with an
rvalue of type 'int'
return you ?: Hi;
^~~~~~~~~
1 error generated.
This works nicely with g++ (v3.4 and v4.4). I guess clang models this as
> int temp = you;
> return temp ? temp : Hi;
while g++ does:
> Howdy temp = you;
> return temp ? temp : Hi;
The test program is:
$ cat gnutest.cc
enum Howdy {
Lo, Hi
};
Howdy test(Howdy you)
{
return you ?: Hi;
}
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