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Project maintained by Cory Smith

CLEAR

Initializes all program variables, closes all files and optionally defines the stack size.

Syntax

CLEAR [ ,,stack_size ]

Comments

CLEAR closes all open files, sets all numeric variables and arrays to 0 and sets all string variables to zero length.

If your program uses recursion or performs several levels of subroutine calls, you might need to increase your program’s stack size.

stack_size is the size of the stack in bytes. You must precede the stack size with two commas as shown.

The default stack size is 2048 bytes.

Do not execute CLEAR within a subroutine.

The CLEAR command:

• Closes all files
• Clears all COMMON and user variables
• Resets the stack and string space
• Releases all disk buffers
• Turns off any sound
• Resets sound to music foreground
• Resets PEN to off
• Resets STRIG to off
• Disables ON ERROR GOTO trapping

Examples

'Initialize variables and create a stack of 4096 bytes
CLEAR,,4096

See Also

• ERASE, FRE