std::add_cv, std::add_const, std::add_volatile std::make_signed std::make_unsigned std::remove_reference std::add_lvalue_reference, std::add_rvalue_reference std::remove_pointer std::add_pointer std::remove_extent std::remove_all_extents std::aligned_storage std::aligned_union std::...
remove_reference之后才能得到对象类型，对得到的对象类型再添加&&，就能在参数上形成转发引用。std::forwar...
// std::remove_reference_tstd::remove_reference_t<int&> // 返回 intstd::remove_reference_t<int&&> // 返回 intstd::remove_reference_t<int> // 返回 int// std::remove_cv_tstd::remove_cv_t<const int> // 返回 intstd::remove_cv_t<volatile int> // 返回 intstd::remove_cv_t<cons...
remove_reference<int&>::type>::value << '\n'; std::cout << "std::remove_reference<int&&>::type is int? " << std::is_same<int, std::remove_reference<int&&>::type>::value << '\n'; std::cout << "std::remove_reference<const int&>::type is const int? " << std::is_...
template <typename T> class remove_reference { public: typedef T type; }; template<typename T> class remove_reference<T&> { publ
#include <type_traits> template<typename U, typename V> constexpr bool same = std::is_same_v<U, V>; static_assert ( same<std::remove_cv_t<int>, int> && same<std::remove_cv_t<const int>, int> && same<std::remove_cv_t<volatile int>, int> && same<std::remove_cv_t<const...
remove_reference<int&>::type>::value << '\n'; std::cout << "std::remove_reference<int&&>::type 是 int? " << std::is_same<int, std::remove_reference<int&&>::type>::value << '\n'; std::cout << "std::remove_reference<const int&>::type 是 const int? " << std::is_...
BOOST_TT_AUX_BOOL_TRAIT_IMPL_SPEC1(is_reference,void,false)// VC6用这一个就可以了,void const等也解决了 // #ifndef BOOST_NO_CV_VOID_SPECIALIZATIONS // BOOST_TT_AUX_BOOL_TRAIT_IMPL_SPEC1(is_reference,void const,false) // BOOST_TT_AUX_BOOL_TRAIT_IMPL_SPEC1(is_reference,void volatile...
const item = Office.context.mailbox.item; const options = { asyncContext: { currentItem: item } }; item.getAttachmentsAsync(options, callback); function callback(result) { if (result.value.length > 0) { for (let i = 0 ; i < result.value.length ; i++) { result....
当您返回对象的副本时，会创建一个新的对象，这正是您想要的。