FRE
From QB64 Wiki
The FRE function returns the amount of Memory available in bytes to running programs.
- memory = FRE(string_expression$)
- memory = FRE(numerical_expression)
- Currently NOT supported in QB64!
- Any string expression returns the size, in bytes, of free string storage space.
- Also compacts the free string storage to a single block of memory.
- 0 returns the same value as using a string expression above.
- -1 returns the size of the largest non-string array in bytes that could be dimensioned.
- -2 returns the amount of stack space, in bytes, available to a running program.
- Any other numerical value returns the size of the next block of string memory storage space.
Example:
' $DYNAMIC PRINT "Sizes in bytes before dimensioning arrays: "; FRE(""), FRE(0), FRE(-1), FRE(-2) DIM Array(100, 100), Text$(5000) PRINT "Sizes in bytes after dimensioning arrays: "; FRE(""), FRE(0), FRE(-1), FRE (-2)
Notes: Sizes returned may vary by computer used. FRE(-2) must be used in a running program!