Movereal Command

Obsolete

This command is replaced by the Move command.

See Also

Purpose

To check data to make sure it is a valid floating point number and move it to a variable.

Syntax

movereal
    value
to
    variable

What It Does

Movereal checks the value of value to ensure it is a valid floating point number, evaluates it as a floating point number, and moves it to variable.

If the data in value is not a valid floating point number, DataFlex Error 51, 52, or 54 is triggered (depending on the type of error—see below), and the data is not evaluated. Movereal does evaluate expressions.

When a move command addresses an explicit variable of Type Real, the compiler automatically replaces the move command with a movereal command. Where you know that data is being moved to a variable of Type Real, using movereal instead of move can save a very small amount of time per command at compile time.

Notes

• Movereal checks the eligibility of data for the Real type. For example:
• If you movereal a value such as 2 (e.g., 2e3), DataFlex Error 51 (Bad format in expression (operand)) will be triggered.
• If you movereal an expression such as 2e 3, DataFlex Error 52 (Bad format of expression (operator)) will be triggered.

• If you movereal an expression such as +2e3, DataFlex Error 54 (Invalid symbol in expression) will be triggered, regardless of the actual type of variable.

• Movereal disables DataFlex's automatic type checking of variables. Therefore, if you movereal to a Date, Integer, Number, or String type variable, no error will be declared at compile time, nor will one be declared at runtime. This effect is harmless, as long as you intend it.