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Meaning of QUESTION MARK

Pronunciation:  'kweschun mârk

 
Computing Dictionary
 
 Definition: 

"?", ascii character 63.

Common names: query; itu-t: question mark; ques. Rare: whatmark; intercal: what; wildchar; huh; hook; buttonhook; hunchback.

Question mark is used, along with colon for c's lazy triadic "if" operator (similar to the iif function in visual basic). The expression x?y:z evaluates x, then if x is true it returns y else it returns z.

In unix shell file name patterns, question mark matches any single character.

 

 

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