How Can I Check for C 11 Support During Compilation?

Determining C 11 Support at Compile-Time

C programmers often need to determine if their compiler supports specific features of C 11 to ensure compatibility with their code. Here's how to achieve this:

Utilizing the __cplusplus Constant

Some compilers provide a constant named __cplusplus, which indicates the supported C standard version. The following example checks for C 11 support:

#if __cplusplus <= 199711L
  #error This library needs at least a C++11 compliant compiler
#endif

Leveraging Boost Macros

Another option is to use macros from the Boost library, which provides defines for specific C 11 features, such as:

• BOOST_CXX11_VARIADIC_MACROS
• BOOST_CXX11_THREADS

#ifndef BOOST_CXX11_VARIADIC_MACROS

#error "Your compiler doesn't support variadic templates."

#else

template <typename... DatatypeList>
class Tuple
{
    // ...
}

#endif

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