different between viable vs vtable

English

Etymology

From French, from Medieval Latin *v?t?bilis (“capable of life”), from Latin v?ta (“life”); see vital.

Pronunciation

• IPA^(key): /?va??b?l/
• Rhymes: -a??b?l
• Hyphenation: vi?a?ble

Adjective

viable (comparative more viable, superlative most viable)

1. Able to live on its own (as for a newborn).
2. Able to be done, possible.

3. (biology) Able to live and develop.

Antonyms

• inviable

Derived terms

• viability

Related terms

Translations

Noun

viable (plural viables)

1. (biology) An organism that is able to live and develop.

Further reading

• viable in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
• viable in The Century Dictionary, New York, N.Y.: The Century Co., 1911.

French

Adjective

viable (plural viables)

1. viable, feasible

Further reading

• “viable” in Trésor de la langue française informatisé (The Digitized Treasury of the French Language).

Spanish

Pronunciation

• IPA^(key): /?bjable/, [?bja.??le]

Adjective

viable (plural viables)

1. viable

Derived terms

• inviable

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.