[cfe-dev] _Generic compiles fine in c++ source
bilbotheelffriend at gmail.com
Sat Jan 18 09:47:52 PST 2014
On Sat, Jan 18, 2014 at 9:53 PM, Aaron Ballman <aaron at aaronballman.com> wrote:
> Actually, I take that back, we treat it as a language extension (not
> certain how I missed that). You should be seeing an extension warning:
> "generic selections are a C11-specific feature" depending on your
> compiler flags.
> So I wouldn't file a bug just yet. What flags are you passing in to
> the compiler?
I hadn't passed any flags initially. However when i passsed -Wc11-extensions,
i got the warning:
x.cpp:3:11: warning: generic selections are a C11-specific feature
int a = _Generic (1, int: 2);
But when I pass no options, it compiles silently.
> On Sat, Jan 18, 2014 at 11:21 AM, Aaron Ballman <aaron at aaronballman.com> wrote:
>> That appears to be a bug; if you'd like, you could file a bug report
>> at http://llvm.org/bugs on it.
>> Good catch!
>> On Sat, Jan 18, 2014 at 2:48 AM, Prathamesh Kulkarni
>> <bilbotheelffriend at gmail.com> wrote:
>>> Hi, sorry to ask a daft question but why does the following code
>>> compile fine with clang/clang++ ?
>>> int main()
>>> int a = _Generic(1, int: 2);
>>> int &x = a;
>>> As far as I know, it does not conform to either C or C++ ( I believe
>>> _Generic is not supported by C++ ? ).
>>> It fails to compile with g++.
>>> Thanks and Regards,
>>> cfe-dev mailing list
>>> cfe-dev at cs.uiuc.edu
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