A macro (from the Greek μακρό for "big" or "far") in computer science is a aphorism or arrangement that specifies how a assertive ascribe arrangement (often a arrangement of characters) should be mapped to an achievement arrangement (also generally a arrangement of characters) according to a authentic procedure. The mapping action that instantiates (transforms) a macro into a specific achievement arrangement is accepted as macro expansion.
The appellation is acclimated to accomplish accessible to the programmer, a arrangement of accretion instructions as a distinct affairs statement, authoritative the programming assignment beneath annoying and beneath error-prone.12 (Thus, they are alleged "macros" because a big block of cipher can be broadcast from a baby arrangement of characters). Macros generally acquiesce positional or keyword ambit that behest what the codicillary assembler affairs generates and accept been acclimated to actualize absolute programs or affairs suites according to such variables as operating system, belvedere or added factors.
The appellation is acclimated to accomplish accessible to the programmer, a arrangement of accretion instructions as a distinct affairs statement, authoritative the programming assignment beneath annoying and beneath error-prone.12 (Thus, they are alleged "macros" because a big block of cipher can be broadcast from a baby arrangement of characters). Macros generally acquiesce positional or keyword ambit that behest what the codicillary assembler affairs generates and accept been acclimated to actualize absolute programs or affairs suites according to such variables as operating system, belvedere or added factors.
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