通过std::tuple_element获取元素类型。 template<typename Tuple> void Fun(Tuple& tp) { std::tuple_element<0,Tuple>::type first = std::get<0>(mytuple); std::tuple_element<1,Tuple>::type second = std::get<1>(mytuple); } 获取
typename std::tuple_element<I, tuple<Types...> >::type&& get( tuple<Types...>&& t ) noexcept; (2) (C++11 起) (C++14 起为 constexpr) template< std::size_t I, class... Types > typename std::tuple_element<I, tuple<Types...> >::type const& get( const tuple<Types......
typename...Ts>constexprautoget(Tuple<Ts...>&&t)noexcept->std::tuple_element_t<I,Tuple<Ts.....
N3670 get<T>() VS 2015 N3671 Dual-Range equal(), is_permutation(), mismatch() VS 2015 N3778 Sized Deallocation VS 2015 N3779 UDLs For <complex> (3.14i, etc.) VS 2015 N3789 constexpr For <functional> VS 2015 N3887 tuple_element_t VS 2015 N3891 Renamin...
...c++11提供的模板函数std::function和std::tuple_element可以将一个函数定义的输入和输出参数类型一个一个解析出来,下面是实现代码 #include ...(Args); // 返回类型 typedef R result_type; // 输入参数类型,i为从0开始的参数类型索引 template struct...)f1.element, /* 强制类型转换为function_tra...
1 std::vector<double> stockPrices; 2 ... 3 boost::tuple<size_t, size_t, double> best_buy = 4 getBestTransactDays(stockPrices); 5 6 size_t buyDay = boost::get<0>(best_buy); // Access 0th element 7 size_t sellDay = boost::get<1>(best_buy); // Access 1st element 8 ...
三、C++11中的tuple（元组）：#include "Common.hpp"#define META(...) auto Meta()->decltype(std::tie(__VA_ARGS__)){return std::tie(__VA_ARGS__);} struct Person { int age;std::string name;std::string city;META(age, name, city)};//宏替换后就是 struct Person { ...
std::is_same<std::tuple_element_t<0,decltype(t1)>,std::tuple_element_t<1,decltype(t1)>>:...
.any() true any(predicate: (T) -> Boolean) 判断集合中是否有满足条件的元素 这个函数定义如下: public inline fun Iterablefalse return true } 当且仅当该集合中所有元素都满足条件时,返回true;否则都返回false。...in this) if (predicate(element)) return false return true } 当且仅当...
N3887 tuple_element_t VS 2015 N3891 Renaming shared_mutex (Timed) To shared_timed_mutex VS 2015 N3346 Minimal Container Element Requirements VS 2013 N3421 Transparent Operator Functors (less<>, etc.) VS 2013 N3655 Alias Templates For <type_traits> (decay_t, etc.) VS...