You are here: irt.org | FOLDOC | plus
<character> "+", ASCII character 43, 0x2B. The mathematical
symbol for the addition operator, also used with the same
meaning in arithmetic expressions in nearly all programming languages.
Common names: ITU-T: plus; add. Rare: cross; INTERCAL:
In programming, the operator is sometimes overloaded to
perform other tasks like concatenating strings. In the C
language and its many imitators, the symbol is doubled, as in
"x++" or "++x" to give an increment operator that adds one to
its operand ("x" in this case) and also returns x's previous
or resulting value respectively.
In a regular expression, "+" means match one or more
instances of the previous pattern. Thus /b(an)+a/ would match
any of "bana", "banana", "bananana", etc. (see banana problem).
Nearby terms: plumbing « Plural EuLisp « PLUS « plus » PLUSS » ply » PM
FOLDOC, Topics, A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z, ?, ALL
©2018 Martin Webb