Computing Dictionary
question mark definition
character "?",
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.
(2003-06-17)