Examlex
Normally open auxiliary contacts that control the starting sequence are often called permissive contacts because they permit action to take place.
#define SQUARE(x)
An example of a macro definition in C/C++ that calculates the square of a given number x using a preprocessor directive.
Macro Definition
A preprocessor directive in programming that defines a piece of code that can be reused throughout the program with a single identifier.
Backslash Character
A character (\) used as an escape character in strings and to specify file paths in some operating systems.
Macro
A macro in programming refers to a set of instructions that are represented as a single instruction to be expanded by a preprocessor before compilation.
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