C++ FAQ / Section 4 / FAQ 4.23

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Revised Jul 4, 2012

[4.23] What updates were made for the 03/05 release?

9 New FAQs:

• [2.9] Where can I find the C++ FAQ translated into Greek?
  (created with much thanks to translator Vangelis Katsikaros)
• [2.16] Where can I find the C++ FAQ translated into Turkish?
  (created with much thanks to translator Doruk Caner)
• [4.23] What updates were made for the 03/05 release?
  (created)
• [16.2] Is it safe to delete the same pointer twice?
  (created promted by a question from Hans Van den Eynden)
• [18.11] What's the relationship between a return-by-reference and a const member function?
  (created)
• [18.12] What's the deal with "const-overloading"?
  (created)
• [20.4] What happens in the hardware when I call a virtual function? How many layers of indirection are there? How much overhead is there?
  (created)
• [20.5] How can a member function in my derived class call the same function from its base class?
  (created)
• [23.7] I'm getting the same mess with destructors: calling a virtual on my this object from my base class's destructor ends up ignoring the override in the derived class; what's going on?
  (created)

23 Changed FAQs:

• [5.9] Which newsgroup should I post my questions?
  (added microsoft.public.dotnet.languages.vc thanks to Ioannis Vranos)
• [5.10] Should I post job advertisements and/or resumés on comp.lang.c++?
  (duplicated the attribution that was in the recent changes section thanks to Daryle Walker)
• [5.11] What if I really need a job; should I post my resumé on comp.lang.c++?
  (duplicated the attribution that was in the recent changes section thanks to Daryle Walker)
• [6.13] Where can I get a copy of the ANSI/ISO C++ standard?
  (updated the Barnes & Noble URL)
• [10.5] Which constructor gets called when I create an array of Fred objects?
  (added the paragraph on placement-new thanks to Alf P. Steinbach; rewrote the other examples)
• [10.6] Should my constructors use "initialization lists" or "assignment"?
  (added "non-static reference" to the list of data members that must appear within an initialization list thanks to Daryle Walker)
• [10.15] How do I prevent the "static initialization order fiasco"?
  (changed *.hpp to *.h)
• [10.16] Why doesn't the construct-on-first-use idiom use a static object instead of a static pointer?
  (changed *.hpp to *.h)
• [10.17] How do I prevent the "static initialization order fiasco" for my static data members?
  (changed *.hpp to *.h)
• [12.1] What is "self assignment"?
  (changed *.hpp to *.h)
• [16.18] But the above Matrix class is specific to Fred! Isn't there a way to make it generic?
  (changed *.hpp to *.h)
• [19.8] I've been told to never use protected data, and instead to always use private data with protected access functions. Is that a good rule?
  (added the goal of providing a coherent/opaque interface to the goals of data hiding thanks to Yechiel Kimchi )
• [23.1] Is it okay for a non-virtual function of the base class to call a virtual function?
  (changed *.hpp to *.h)
• [23.9] What's the meaning of, Warning: Derived::f(char) hides Base::f(double)?
  (added the paragraph on "hiding happens when you have a derived-pointer, not when you have a base-pointer" thanks to Daniel Kabs)
• [26.6] I'm sooooo confused. Would you please go over the rules about bytes, chars, and characters one more time?
  (fixed a spelling error thanks to Daryle Walker)
• [26.10] Can I define an operator overload that works with built-in / intrinsic / primitive types?
  (added "or enumeration type" to the first sentence thanks to Daryle Walker)
• [29.20] If an enumeration type is distinct from any other type, what good is it? What can you do with it?
  (added the caveat on the last line of code thanks to Daryle Walker)
• [32.1] What do I need to know when mixing C and C++ code?
  (added a caveat about some of the requirements depending on your compiler-vendor thanks to Mitchell Charity)
• [34.3] Is the storage for a std::vector<T> guaranteed to be contiguous?
  (changed &v[0] to v.empty() ? NULL : &v[0] thanks to David Hilsee)
• [35.15] How can I avoid linker errors with my template classes? Updated!
  (fixed a bug by changing template Foo<int> to template class Foo<int> thanks to alert readers Eric Gorr and Patrick Guio)
• [37.9] Where can I get tons and tons of more information on C++ class libraries?
  (fixed the URL to www.mathtools.net/C_C__ thanks to Daryle Walker)
• [39.7] Why can't the compiler find my header file in #include "c:\test.h" ?
  (changed *.hpp to *.h)
• [40.3] Are there any pretty-printers that reformat C++ source code?
  (fixed the URL to C++2LaTeX thanks to Daryle Walker and Nicolás Conde)