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Questions - variadic-templates

Non-type template parameter with template parameter pack

I am checking the validity of a string whose valid values are known at compile time. I have the following simplified code snippet: #include <cassert> #include <string> template <char c...
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Tom&#225;š Krupa

c++

c++11

variadic-templates

non-type-template-parameter

Votes: 0

Answers: 1

Latest Answer

template<char const* str> struct str_t { static const char* string = str; }; bool IsValidImpl(std::string const& str) { return false; } template<class String, class...Strings> bool...
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Yakk - Adam Nevraumont

Can we just have one function with variadic templates?

I am taking the code from the solution to one of the old question from here #include <utility> #include <iostream> class Test { public: Test() { std::cout << "ctor&quo...
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Test

c++

c++17

variadic-templates

Votes: 0

Answers: 2

Latest Answer

In C++17, your might use fold expressions: template <typename ... Ts> void pass(Ts&&... args) { [[maybe_unused]] auto f = [](auto&& arg){ /* use arg here */}; (f(std::for...
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Jarod42

C++17 can variadic template class define new type and variadic data member?

#include <iostream> template <typename T0, typename T1> struct Clazz { void doSomething(const std::shared_ptr<T0>& p0, const std::shared_ptr<T1>& p1) {...
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xishvai

c++

class

c++17

variadic-templates

fold-expression

Votes: 0

Answers: 2

Latest Answer

You can use std::tuple, also for the param_type. In case you want a tuple of shared pointers, that is: #include <tuple> #include <iostream> #include <memory> template <typename.....
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463035818_is_not_a_number

statemachine using variadic template overloading

I am trying to build a statemachine in C++ using variadic templates. class Event {}; template<typename... TEvents> class StateMachineActionHandler { public: void action() = delete; }; temp...
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Frank

c++

variadic-templates

Votes: 0

Answers: 1

Latest Answer

You need to use using-declaration to introduce the default implementation into the derived class definition class StateA : public State<EventA, EventB> { public: using State<EventA, Event...
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