typename>autotest_is_base_of(...)->std::true_type;// private or ambiguous base}template<typenameBase,typenameDerived>structis_base_of:std::integral_constant<bool,std::is_class<Base>::value&&std::is_class<Derived>::value&&decltype(details::test_is_base_of<Base, Derived>(0))::value>{}...
If std::is_virtual_base_of_v<A, B> is true, then std::is_base_of_v<A, B> is also true. However, the converse is not true because the check for virtual inheritance is more specific. In that case, std::is_virtual_base_of_v<T, T> is false. Example...
is_aggregate<> (C++17 起) is_aggregate_v<> (C++17 起) is_arithmetic<> (C++11 起) is_arithmetic_v<> (C++17 起) is_array<> (C++11 起) is_array_v<> (C++17 起) is_assignable<> (C++11 起) is_assignable_v<> (C++17 起) is_base_of<> (C++11 起) is_base_of_v<> (C++...
template< class From, class To > struct is_nothrow_convertible; (2) (C++20 起) 1) 如果虚构的函数定义 To test() { return std::declval<From>(); } 良构,(即 std::declval<From>() 能用隐式转换转换为 To,或 From 和To 均为可有 cv 限定的 void),那么提供的成员常量 value 等于true。否则...
The client API is fully asynchronous. The API returns boost::future API which has the capability of continuations. If the user wants to make sure that the requested operation is completed in the cluster and committed in the distributed database, he/she needs to wait for the result of the ...
I know this one is on our end but it's a bit of a mystery to us, so thought you might have an idea or could point us in the right direction. Member derekmauro commented Mar 15, 2020 Sure, I responded on that issue. 👍 1 absl-federation-github closed this as completed in 78...
(char const *filename); private: Log(); // ctor is hidden Log(Log const&); // copy ctor is hidden static Log m_pInstance; static std::list<std::string> m_data; }; // in log.cpp we have to add Log Log::m_pInstance; 这种模式的问题也很明显, 类现在是多态的, 但静态成员变量...
147if(c.IsValid()) 148{ 149returnfalse; 150} 151 152mChannels.BeginCreateOrFindProperty(); 153FbxDataTypedt =FbxGetDataTypeFromEnum(FbxTypeOf(pValue)); 154c =FbxProperty::Create(mChannels, dt, pChnlName); 155c.Set(pValue);
browseThe set of properties used when"C_Cpp.intelliSenseEngine"is set to"Tag Parser"(also referred to as "fuzzy" IntelliSense, or the "browse" engine). These properties are also used by theGo to Definition/Declarationfeatures, or when the "default" IntelliSense engine is unable to resolve...
DDS_Boolean is_alias_pointer (DDS_ExceptionCode_t &ex) const Function that tells if an alias is a pointer or not. DDS_Long default_index (DDS_ExceptionCode_t &ex) const Returns the index of the default member, or -1 if there is no default member. DDS_TypeCode * concrete_base_...