Noun
English Wikipedia has an article on:preprocessorWikipedia
preprocessor (plural preprocessors)
(computing) program that processes its input data to produce output that is used as input to another program
Advanced functionality is provided by the auxiliary library, which consists largely of preprocessor macros which assist with complex table operations. Source: Internet
A preprocessor is used to substitute arbitrary hierarchies, or rather "interconnected 'webs' of macros", "WEB's macros are allowed to have at most one parameter. Source: Internet
C has some features, such as line-number preprocessor directives and optional superfluous commas at the end of initializer lists, which support compilation of generated code. Source: Internet
It commonly uses a photonic preprocessor frontend to time-stretch the signal, which effectively slows the signal down in time and compresses its bandwidth. Source: Internet
Note that unlike certain previous macro processors inside assemblers, the C preprocessor is not Turing-complete because it lacks the ability to either loop or "go to", the latter allowing programs to loop. Source: Internet
C preprocessor macros work by simple textual search-and-replace at the token, rather than the character level. Source: Internet