nullptr_t (C++11) offsetof NULL Numeric limits numeric_limits C numeric limits interface Runtime type information type_info type_index (C++11) bad_typeid bad_cast std::type_index Member functions type_index::type_index type_index::operator=type_index::operator!=type_index::operator<type_inde...
#include <iostream> #include <typeindex> #include <type_traits> int main() { std::type_index type1 = typeid(int); std::type_index type2 = typeid(double); bool convertible = std::is_convertible<int, double>::value; std::cout << "int is convertible to double: " << ...
一、背景介绍： 函数指针始终不太灵活，它只能指向全局或静态函数，对于类成员函数、lambda表达式或其他可...
#include<iostream>#include<typeinfo>#include<boost/type_index.hpp>template<classT>voiddo_something(constT&x){// std RTTIstd::cout<<"T is "<<typeid(T).name()<<std::endl;// supress unused warning(void)x;}voidsample1(){auto&&x=42;std::cout<<"x is "<<typeid(decltype(x)).name(...
nullptr_t (C++11) offsetof NULL Numeric limits numeric_limits C numeric limits interface Runtime type information type_info type_index (C++11) bad_typeid bad_cast std::type_index Member functions type_index::type_index type_index::operator=type_index::operator!=type_index::operator<type_inde...
在 C++ 标准库中，std::transform() 是一个非常有用的算法函数，它能够将给定范围中的每个元素进行...
insert(std::make_pair(std::type_index(typeid(TArg)), function([&f](std::any &x) -> TReturn { return f(std::any_cast<TArg &>(x)); }))); for (auto i : functions) { std::cout << i.first << i.second << std::endl; } } TReturn operator()(std::any &x) { try { ...