ForStack

The ForStack config specification changes the size of the For/Next stack, which keeps track of each different variable incremented in a program's For/Next loops.

Comments and Examples

The For/Next stack counts loop variables by name, regardless of how many times they are used in a program. Thus, if I is used as a loop variable (FOR I = 1 TO...) once in a program, it takes up one For/Next stack variable. But if I is used twenty times as a loop variable, it still takes up just one For/Next stack variable.

Syntax

Start-up Default

FORSTACK 100 (version 4.3+)

Parameter

"Integer" is a decimal number that represents the number of variables the For/Next stack should hold. This number must be greater than 4.

Technical Considerations

1. ForStack may be specified only in BRConfig.sys; it is not valid with the config command.
2. An error message (error code 9004) appears when a program uses more than the allotted number of For/Next variables.
3. The flow stack memory area is taken from available user memory.
4. The Status Stacks command shows the current stack settings.