Insert into vector having objects without copy constructor

Question

I have a class whose copy constructors are explicitly deleted (because A uses pointers internally and I don\'t want to fall into shallow copy pitfalls):

clas         


        

Answer 1

I ran into this problem with an external library's class. I was getting,

"Error C2280 ClassName::ClassName(const ClassName &)': attempting to reference a deleted function"

I'm guessing that the class I was using had deleted its copy constructor. I couldn't add it to any std containers I knew of for my custom derived-class objects, which wrapped their object with some helpers of mine to help with initialization/error checks.

I worked around this blocker with (risky) pointers.

Basically, I transitioned to this:

std::vector names;
ClassName name("arg");
ClassName name_ptr = &name;
names.push_back(name_ptr);

from this, originally:

std::vector names;
ClassName name("arg");
names.push_back(name);

Interesting to say, this was the first time coding with C++ that I've actually needed to use pointers for non-pointer-specific usage requirements due to no known alternative. That makes me worry that I may missed something fundamental within my own code.

Maybe there's a better way to do this, but it's not on this question's list of answers yet...

edit for Caveat:

I should have mentioned this before, thanks aschepler; if you do this and the container you're using outlives the object, "bang, you're dead."