Should we initialise queue and maps of a class in constructor

[Scarletpimp]

I have a class which has queue and map like below where astruct is a structure and aclass is a class. Should i initialise these in a constructor? Is so how do i do this? Thanks in advance

class A
{
queue<astrct*> m_testQueue;
map<int,aclass*> m_testmap;
A()
{};
}

[salem c]

Your constructors should ALWAYS construct everything fully that can't be default constructed by themselves.

Your standard containers such as queue and map will construct themselves to be empty.

[Ganado]

I'll word it a bit differently: Your construct WILL always construct any sub-objects. If you don't specify a constructor via an initializer list*, they will be default constructed.

But as salem c said, this just means m_testQueue and m_testmap will be empty containers by default.

* https://www.geeksforgeeks.org/when-do-we-use-initializer-list-in-c/

[Scarletpimp]

Thanks, that answers my question.