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In computing, blue paint refers to the mark given to preprocessing tokens by the C preprocessor that temporarily disables expansion of those tokens. A token is said to be painted blue when it has been disabled in this way. While the original author of the term is disputed, Derek Jones[1] states that it came about as a reference to blue ink used by the C committee.
References
edit- ^ Derek M. Jones (2008). The New C Standard (Excerpted material): An Economic and Cultural Commentary (PDF). Archived from the original (PDF) on 2019-04-22.