generic-library/cereal
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testing macros for gcc 4.7

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This commit is contained in:
Shane Grant 2013-12-22 12:14:23 -08:00
parent 9085b6dc79
commit 8e5fa8ef33
2 changed files with 18 additions and 41 deletions
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17
include/cereal/details/traits.hpp
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@ -30,6 +30,10 @@
#ifndef CEREAL_DETAILS_TRAITS_HPP_
#define CEREAL_DETAILS_TRAITS_HPP_
#if (__GNUC__ == 4 && __GNUC_MINOR__ <= 7)
#define CEREAL_OLDER_GCC
#endif
#include <type_traits>
#include <typeindex>
#include <memory>
@ -43,9 +47,21 @@ namespace cereal
typedef std::true_type yes;
typedef std::false_type no;
#ifdef CEREAL_OLDER_GCC // when VS supports better SFINAE, we can use this as the default
template<typename> struct Void { typedef void type; };
#endif // CEREAL_OLDER_GCC
//! Creates a test for whether a non const member function exists
/*! This creates a class derived from std::integral_constant that will be true if
the type has the proper member function for the given archive. */
#ifdef CEREAL_OLDER_GCC
#define CEREAL_MAKE_HAS_MEMBER_TEST(name) \
template <class T, class A, class SFINAE = void> \
struct has_member_##name : no; \
template <class T, class A> \
struct has_member_##name<T, A, \
typename Void< decltype( cereal::access::member_##name( std::declval<AA&>(), std::declval<TT&>() ) ) >::type> : yes {};
#else // NOT CEREAL_OLDER_GCC
#define CEREAL_MAKE_HAS_MEMBER_TEST(name) \
namespace detail \
{ \
@ -61,6 +77,7 @@ namespace cereal
} /* end namespace detail */ \
template <class T, class A> \
struct has_member_##name : std::integral_constant<bool, detail::has_member_##name##_impl<T, A>::value> {}
#endif // NOT CEREAL_OLDER_GCC
//! Creates a test for whether a non const non-member function exists
/*! This creates a class derived from std::integral_constant that will be true if

42
sandbox_vs.cpp
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@ -174,47 +174,7 @@ int main()
std::cout << typeid(A).name() << std::endl;
std::cout << typeid(cereal::traits::has_load_and_allocate<int, bool>).name() << std::endl;
//Archive a;
//T t;
// extra testing
//cereal::access::member_save( a, t );
//cereal::access::member_load( a, t );
//cereal::access::member_serialize( a, t );
//std::stringstream ss;
//{
// cereal::JSONOutputArchive ar( ss );
// ar( 5 );
// ar( cereal::make_nvp("hello", 2.4f ) );
// std::string s = "hey yo";
// ar( CEREAL_NVP( s ) );
// int darp [] = { 1, 2, 3 };
// ar.saveBinaryValue( darp, sizeof(int) * 3, "darp" );
// std::unique_ptr<A> ptr( new B() );
// ar( CEREAL_NVP( ptr ) );
//}
//{
// cereal::JSONInputArchive ar( ss );
// int x;
// ar( x );
// assert( x == 5 );
// float f;
// ar( f );
// assert( f == 2.4f );
// std::string s;
// ar( s );
// assert( s == "hey yo" );
// int darp[3];
// ar.loadBinaryValue( darp, sizeof(int) * 3 );
// assert( darp[0] == 1 );
// assert( darp[1] == 2 );
// assert( darp[2] == 3 );
// std::unique_ptr<A> ptr;
// std::cout << "----------" << std::endl;
// std::cout << std::is_default_constructible<A>::value << std::endl;
// std::cout << cereal::traits::has_load_and_allocate<A, cereal::JSONInputArchive>::value << std::endl;
// ar( ptr );
//}
return 0;
}