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Full Discussion: About uncopyable class (on book:Effective C++)
Top Forums Programming About uncopyable class (on book:Effective C++) Post 302739137 by Corona688 on Monday 3rd of December 2012 03:14:32 PM
Old 12-03-2012
More precise than what? There is not a lot more information to be had.

1) You have overloaded the = operator.
2) You don't assign to that class using the = operator anywhere.
3) Therefore, the = operator is not called.

Next,

1) You have overloaded the Dog() constructor. This means you get to choose what you pass into Uncopyable().
2) You don't pass anything into Uncopyable().
3) Therefore nothing gets passed into Uncopyable(). It uses the default constructor.

It's not going to assume what things it shouldn't and shouldn't take from a custom constructor. If you wanted it to use the other constructor, you'd have to tell it, something like so:

Code:
Dog(const Dog &rhs):Uncopyable(rhs) {}

Last edited by Corona688; 12-03-2012 at 04:23 PM..
 

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LEARN ABOUT CENTOS

std::exception

std::exception(3)					     Library Functions Manual						 std::exception(3)

NAME

       std::exception -

SYNOPSIS

       Inherited by __gnu_cxx::__concurrence_broadcast_error, __gnu_cxx::__concurrence_lock_error, __gnu_cxx::__concurrence_unlock_error,
       __gnu_cxx::__concurrence_wait_error, __gnu_cxx::forced_error, __gnu_cxx::recursive_init_error, std::bad_alloc, std::bad_cast,
       std::bad_exception, std::bad_function_call, std::bad_typeid, std::bad_weak_ptr, std::ios_base::failure, std::logic_error, and
       std::runtime_error.

   Public Member Functions
       virtual const char * what () const noexcept

Detailed Description
       Base class for all library exceptions.

       This is the base class for all exceptions thrown by the standard library, and by certain language expressions. You are free to derive your
       own exception classes, or use a different hierarchy, or to throw non-class data (e.g., fundamental types).

       Definition at line 60 of file exception.

Member Function Documentation
   virtual const char* std::exception::what () const [virtual],  [noexcept]
       Returns a C-style character string describing the general cause of the current error.

       Reimplemented in std::bad_function_call, std::ios_base::failure, std::bad_typeid, std::bad_cast, std::runtime_error, std::future_error,
       std::bad_exception, std::logic_error, std::bad_weak_ptr, and std::bad_alloc.

Author
       Generated automatically by Doxygen for libstdc++ from the source code.

libstdc++							  Tue Jun 10 2014						 std::exception(3)
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