Recital Operators

Recital Operators

Arithmetic Operators

The Recital/4GL supports the use of the following Arithmetic Operators:

Operator	Operation	Precedence
()	Parentheses	1
**	Exponentiation	2
*	Multiplication	3
/	Division	3
%	Modulus/Remainder	3
+	Addition	4
-	Subtraction	4

When dealing with Date data types, the operators have the following definitions:

Operator	Operation
+	<expD> + <expN> returns a date plus the number of days specified in <expN>.
-	Returns the interval between the two dates as a number of days.

Example

? 2*3^2
        18
? 2*25%7
      1.00
? date() + 30 - date()
        30

String Concatenation Operator

When dealing with string data types, the + and - operators perform the following concatenation operations:

Operator	Operation
+	Concatenate the right hand string to the end of the left hand string.
-	Concatenate the right hand string to the end of the left hand string after trimming the left hand string of trailing spaces.

Example

? [Hello] + [ ] + [ World]
Hello World
? [Hello     ] - [ World]
Hello World