WebFollowing is the declaration for std::type_info::name. C++98 const char* name() const; C++11 const char* name() const noexcept; Parameters. none. Return Value. It returns a null-terminated character sequence that may identify the type. Exceptions. No-throw guarantee − this member function never throws exceptions. Data races. The locale object ... WebAug 15, 2015 · The safest, easiest and most correct way to do this would be to add a virtual name function of your own to Resource: virtual std::string name () const = 0; Then override it in every subclass to return the name of the class. Share.
How to output c++ type information during compilation
WebOct 7, 2010 · In C++ variable types never change. Variable always have the type it was first declared with. – AnT stands with Russia Oct 7, 2010 at 16:19 possible duplicate of Unmangling the result of std::type_info::name – Mike Seymour Oct 7, 2010 at 16:25 Show 1 more comment 1 Answer Sorted by: 18 WebAug 2, 2024 · typeid is used to get the Type for a type at compile time. typeid is similar to getting the System::Type for a type at run time using GetType or GetType. However, typeid only accepts a type name as a parameter. If you want to use an instance of a type to get its System::Type name, use GetType. free easy sunday school lessons for kids
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WebNov 17, 2024 · No. As documentation for std::type_info::name says: No guarantees are given; in particular, the returned string can be identical for several types and change between invocations of the same program. I don't know your exact use case, but chances are you can utilise C++11 std::type_index instead. WebC++学习笔记:类的类型转换. C Primer第五版P535页有这样一段话:在对象之间不存在类型转换。派生类向向基类的自动类型转换只对指针或引用类型有效,在派生类类型和基类类型之间不存在这种转换。 #include #include #include usi… WebAug 5, 2024 · An std::vector cannot contain references in any circumstances. A type_info is neither copy constructable or assignable, so cannot be stored in a vector either. Try storing some data from the type_info structure in a vector, such as (depending on your needs) a std::vector (which can be initialised with type_info::name(), but bear in mind … blot beauty swatches