How to resolve eclipse error as 'value' used with 'is_same' can not be resolved?

I have eclipse ide and linux platform ,inside eclipse i am using 'is_same' as :

#include <iostream>
#include <type_traits>
#include <cstdint>
int main()
{
std::cout << std::is_same<int, int32_t>::value;
}

When i build it it throws error as 'Symbol value could not be resolved'. I have done the c++11 related settings inside eclipse as:

 1)right click project> properties>C/C++ Build> Discovery Options select
 'Compiler invocation arguments' added -std=c++0x

So , now 'is_same' is being recognized but the 'value' is not getting resolved. I have also added few settings inside

 c/c++ General>Path and Symbols selected symbol tag and added      
'__GXX_EXPERIMENTAL_CXX0X__ ' and left the value blank.

So, please help me what am i missing if compiler is able to find 'is_same' then why is it not able to resolve 'value'?