different between vtable vs vatable

English

Etymology

Shortening of virtual method table or virtual function table.

Pronunciation

• (UK) IPA^(key): /?vi?te?b?l/
• Rhymes: -e?b?l

Noun

vtable (plural vtables)

1. (computing, programming) A table of memory pointers to different implementations of a virtual function.
   • 2000, Robert C. Martin, More C++ gems

     This solution allows the Command executor to iterate through a collection of unrelated objects with no vtables and pick out the right method for each one.

   • 2003, John C. Mitchell, Concepts in programming languages

     Note that nonvirtual functions do not appear in a vtable.

   • 2003, Steve Heller, C++: a dialogue: programming with the C++ standard library

     The most likely result will be a crash when the code tries to use a vtable entry that contains random garbage.

English

Alternative forms

• VATable

Etymology

VAT +? -able.

Adjective

vatable (not comparable)

1. On which VAT must be paid.

   You will be invoiced for everything — first for the non-vatable items and later for the vatable items.