[LLVMdev] Unable to evaluate clang on linux or windows

[James Courtier-Dutton]

I think there might be something wrong with your installation.

clang++ -std=c++0x hello.cpp
clang++ -std=c++11 hello.cpp

Both works fine here and creates an exe a.out
Which version of clang/llvm are you using?




On 18 October 2013 13:33, C K Kashyap <ckkashyap at gmail.com> wrote:

> Hi,
> I'd really appreciate some pointers in this regard.
> Regards,
> Kashyap
>
>
> On Wed, Oct 16, 2013 at 5:43 PM, C K Kashyap <ckkashyap at gmail.com> wrote:
>
>> Sorry ... I missed mentioning the details -
>>
>> this is the error I get -
>>
>> root at no1slu398:~/Documents/LLVM/tmp# clang++ -std=c++0x  hello.cpp
>> In file included from hello.cpp:1:
>> In file included from
>> /usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../include/c++/4.6/thread:38:
>> /usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../include/c++/4.6/chrono:535:6:
>> error: no matching constructor for initialization of 'duration' (aka
>>       'std::chrono::duration<long, std::ratio<1, 1000000> >')
>>           : __d(__t.time_since_epoch())
>>             ^   ~~~~~~~~~~~~~~~~~~~~~~
>> /usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../include/c++/4.6/condition_variable:106:42:
>> note: in instantiation of function template specialization
>>       'std::chrono::time_point<std::chrono::system_clock,
>> std::chrono::duration<long, std::ratio<1, 1000000> >
>> >::time_point<std::chrono::duration<long,
>>       std::ratio<1, 1000000000> > >' requested here
>>         const __clock_t::time_point __s_atime = __s_entry + __delta;
>>                                                 ^
>> /usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../include/c++/4.6/chrono:234:12:
>> note: candidate constructor not viable: no known conversion from
>>       'duration<[...], ratio<[...], 1000000000>>' to 'const
>> duration<[...], ratio<[...], 1000000>>' for 1st argument
>>         constexpr duration(const duration&) = default;
>>                   ^
>> /usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../include/c++/4.6/chrono:237:19:
>> note: candidate template ignored: disabled by 'enable_if' [with _Rep2 =
>>       std::chrono::duration<long, std::ratio<1, 1000000000> >]
>>                enable_if<is_convertible<_Rep2, rep>::value
>>                          ^
>> /usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../include/c++/4.6/chrono:244:19:
>> note: candidate template ignored: disabled by 'enable_if' [with _Rep2 =
>> long, _Period2
>>       = std::ratio<1, 1000000000>]
>>                enable_if<treat_as_floating_point<rep>::value
>>                          ^
>> /usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../include/c++/4.6/chrono:232:12:
>> note: candidate constructor not viable: requires 0 arguments, but 1 was
>> provided
>>         constexpr duration() : __r() { }
>>                   ^
>> 1 error generated.
>> root at no1slu398:~/Documents/LLVM/tmp# cat hello.cpp
>> #include <thread>
>>
>>  int main() {
>>   return 0;
>> }
>>
>>
>> Regards,
>> Kashyap
>>
>>
>>
>> On Wed, Oct 16, 2013 at 7:40 AM, Ben Pope <benpope81 at gmail.com> wrote:
>>
>>> On 15/10/13 22:22, C K Kashyap wrote:
>>> > Hi,
>>> > I'd like to try out the new c++11 features using clang. However, I am
>>> > running into some issue or the other on both Windows and Linux. In both
>>> > cases, it looks like the problem is due to headers from VC/g++.
>>> > I was wondering if someone can point me to some steps on setting up a
>>> > Windows or Linux(ubuntu 12.04 LTS) box for exploring clang.
>>> > I was able to successfully build clang on my ubuntu but that did not
>>> > help in building my sample CPP files.
>>>
>>> It might help if you give us the compiler error and version of clang
>>> you've compiled.
>>>
>>> I can compile C++ programs with libstdc++ or libc++ without issue.
>>>
>>> Windows support is experimental at the moment, so let's stick with
>>> Ubuntu for now.
>>>
>>> Ben
>>>
>>>
>>> _______________________________________________
>>> LLVM Developers mailing list
>>> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
>>> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>>>
>>
>>
>
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