Category:Internal Functions

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Business Rules! has numerous built-in internal functions that return either numeric or string values. By using internal functions for tasks such as searching or summing an array, both programmers and programs can be more efficient in getting their jobs done. Numeric functions may be used anywhere that a numeric expression is valid. Likewise, string functions may be used anywhere that a string expression is valid. Internal functions usually perform generic tasks often needed by programmers.

The pages below present these internal functions in alphabetical order. They describe their purpose, provide comments and examples, and mention related functions.

Syntax Conventions

Numeric values are symbolized by the variables X and Y. String variables are symbolized by A$, B$, and C$. File reference numbers are symbolized by N, where N is the number associated with an opened file. Square brackets around a parameter indicate the parameter is optional. In all cases, the parameters or arguments which are passed remain unchanged.