Pointer in Basic

[SagaraS]

Code: (Select All)

DIM a AS _BYTE

DIM b AS INTEGER

DIM c AS LONG

DIM d as _INTEGER64

DIM e as _FLOAT

DIM ends as _byte ' <-- should serve as the end



PRINT HEX$(_OFFSET(a))

PRINT HEX$(_OFFSET(b)) 

PRINT HEX$(_OFFSET(c)) 

PRINT HEX$(_OFFSET(d)) 

PRINT HEX$(_OFFSET(e)) 

PRINT HEX$(_OFFSET(ends))

The output shows you the memory addresses that are reserved for the variables.
Since they all follow each other in memory, you can view the addresses in a memory viewer.

QB64 actually reserves 8 bytes for each variable. Except for _FLOAT 32 bytes are reserved.

The wiki says nothing about how variables are reserved in memory.
It only says how many bytes are used.

Example:
A INTEGER used 2 bytes.
QB64 reserved 8 bytes for it in the memory.

The first 2 bytes of this reserved bytes are used. The rest remains unused.
This can be observed even via a memory viewer.