Question

For example, I have a constructor like

myClass(const char* name);

Can it be like

myClass(const char* name);
{
  someInnerField = name;
}

or I should copy input string to inner field by value?

Answer 1

What’s safe is:

std::string someInnerField;
myClass(const std::string& name) : someInnerField(name)
{
}

Your version could fail if the class destroys the memory its member points to (and you still use it outside the scope of the class) or if the memory is destroyed outside the class (and you continue to use it inside).