I'm working with a C++ class that includes both a conversion operator and a constructor that takes a std::initializer_list. According to Scott Meyers in "Effective Modern C++," Item 7, ...

The following code when compiled with -fsanitize=address emits a stack-use-after-scope error in GCC 12.3 and Clang 20.1, but not GCC 14.2. #include <functional> #include <cstdint> #include ...

I am designing a container (yeah, do not reinvent the wheel, I know). Let's call it Container<T>. I have a constructor to allow the initial number of elements: explicit Container(std::size_t ...

#include <initializer_list> int main() { std::initializer_list<int> il = std::initializer_list<int>{1, 2, 3}; return 0; } As I understood it you should not copy std::...

Some cpp class accept initializer_list as input, for example: std::map<std::string, int> m{{"CPU", 10}, {"GPU", 15}, {"RAM", 20}}; or std::map<std::string, int&...

I have a Game class that stores the m_players as a data member (std::list<Player>) and each player has multiple data members, one of them being their m_name (std::string). When instantiating a ...

My question is about the confusion in C++ default class member initialization between using an initializer list and calling a constructor. There is no ambiguity in the language but a possible ...

I've got a class that basically contains a std::vector. I can default-construct an object of this class, leaving the contained std::vector empty. I can also value-construct it from a set of values, ...

I can concisely (with braces) initialize 5 out of 6 of the following cases: of copyable of move-only array YES YES std::array YES YES std::vector YES NO The one case that doesn't seem to work is ...

According to cppreference.com, std::initializer_lists have constexpr constructors and constexpr size methods (since C++14). Although the compiler I was using seemed to agree that the size of a ...

C++ standard defines that initializer_list will be transformed in the following manner: struct X { X(std::initializer_list<double> v); }; X x{ 1,2,3 }; The initialization will be implemented ...

I wanted to figure this out, because I was running some unit tests and our system allows you to mark the test with one or more initializer lists, which will translate to multiple runs with different ...

It seems I don't understand braced init lists at all. Why does the following compile for operator=() (entity e) but not for the constructor (entity f)? Demo #include <cstdio> #include <...

I have a hard time understanding how std::initializer_list works. I checked other questions, but found nothing relevant (or maybe I didn't see it?). Say I have this: template<typename T> struct ...

Code taken from the book Template Metaprogramming with C++, it doesn't compile i tried visual studio 22 i get the error: Error C2440 \<function-style-cast\>' : cannot convert from '...