Specifications

Chapter 15. Function Reference
358
Syntax:
FRE(areaspec)
Parameter:
areaspec
A numeric expression which returns a value from 0 to 3.
Description:
FRE returns the number of bytes left unused in a memory area specified by
areaspec listed below.
• The file area will be allocated to data files and program files in cluster units. The
FRE function returns the total number of bytes of non-allocated clusters. (For
details about a cluster, refer to Appendix F, "Memory Area.")
• The operation stack area for the Interpreter is mainly used for numeric operations,
string operations, and for calling user-defined functions.
• A returned value of this function is a decimal number.
Run-time errors:
FREe area Memory management function
FRE
Returns the number of bytes available in a specified area of the memory.
areaspec
Memory area
0
Array work variable area
1
File area
2
Operation stack area for the Interpreter
Error code Meaning
05h
Parameter out of the range
(
areaspec is out of the range.)