CMake/Tests/CompileFeatures/cxx_generalized_initializers.cpp
Brad King ecb1d5b47a Features: VS 2013 Update 3 supports initializer lists (#15494)
VS 2013 originally claimed to support initializer lists but a bug was
found in which it generated bad code silently.  For this reason we
previously considered support to not be present.  However, Update 3 adds
a hard error on cases that previously generated bad code, so it is now
safe to use initializer lists with VS 2013 Update 3 or greater.  At
worst a compiler error will be issued in the cases that do not work, but
that is no different from any other compiler-specific workaround a
project code may need.
2015-04-06 10:06:26 -04:00

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#if defined(_MSC_VER) && _MSC_VER == 1800 && _MSC_FULL_VER < 180030723
# error "VS 2013 safely supports this only with Update 3 or greater"
#endif
// Dummy implementation. Test only the compiler feature.
namespace std {
typedef decltype(sizeof(int)) size_t;
template <class _E>
class initializer_list
{
const _E* __begin_;
size_t __size_;
public:
template <typename T1, typename T2>
initializer_list(T1, T2) {}
};
}
template <typename T>
struct A
{
A(std::initializer_list<T>) {}
};
void someFunc()
{
A<int> as = { 1, 2, 3, 4 };
}