[cfe-dev] Clang: template functions

[Stefano S]

update: I changed the flag -std to the value gnu++98 and now the things are
working. So, using the -std="gnu89" was forcing the C mode and not C++ mode.
Sorry, I was not aware of that.

Regards,
Stefano

On Fri, Nov 5, 2010 at 3:05 PM, Stefano S <kindoblue at gmail.com> wrote:

> Hi,
>
> I'm not compiling the header directly, it is included in another header,
> which is included in a *.cpp file. So, the extension should be interpreted
> as signaling a c++ source, right? What I did was basically
>
> export CC=cflags
> export CXX=cflags++
> export CPP=cflags++
>
> and then running the configure phase followed by a compilation phase. It
> really seems the C and not C++ mode is working here but I wonder why is
> that. Anyway, thanks a lot for the replies
>
> Regards,
> Stefano
>
>
>
> On Fri, Nov 5, 2010 at 12:56 PM, Sebastian Redl <
> sebastian.redl at getdesigned.at> wrote:
>
>> On 05.11.2010 12:27, Frits van Bommel wrote:
>> > On Fri, Nov 5, 2010 at 12:15 PM, Sebastian Redl
>> > <sebastian.redl at getdesigned.at>  wrote:
>> >> Sounds like you're trying to compile C++ code as C. Just because you
>> >> invoke Clang as clang++ doesn't mean it runs in C++ mode, it only means
>> >> it will link against the C++ runtime libraries. To actually compile in
>> >> C++ mode, the file must have a C++ extension (.cxx, .cpp or .cc), or
>> you
>> >> have to override the language detection with the -x option.
>> > It does, actually. From clang/tools/driver/driver.cpp:
>> >
>> >    // Check for ".*++" or ".*++-[^-]*" to determine if we are a C++
>> >    // compiler. This matches things like "c++", "clang++", and
>> "clang++-1.1".
>> >    //
>> >    // Note that we intentionally want to use argv[0] here, to support
>> "clang++"
>> >    // being a symlink.
>> >    //
>> >    // We use *argv instead of argv[0] to work around a bogus g++
>> warning.
>> >    const char *progname = argv_[0];
>> >    std::string ProgName(llvm::sys::Path(progname).getBasename());
>> >    if (llvm::StringRef(ProgName).endswith("++") ||
>> >        llvm::StringRef(ProgName).rsplit('-').first.endswith("++")) {
>> >      TheDriver.CCCIsCXX = true;
>> >    }
>> That still doesn't mean that it will automatically use C++ as the input
>> language. It might mean that it interprets .h files differently.
>>
>> Sebastian
>> _______________________________________________
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>> cfe-dev at cs.uiuc.edu
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>>
>
>
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