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Newcomers DBPro Corner / Get variable address in memory

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BriereAnthony

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Joined: 20th Feb 2011

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Posted: 20th Feb 2011 15:32

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Hello, I'm new to darkbasic pro and I'd like to know if it's possible to get the address of a variable in memory?

My problem is that I'd like to modify the value of some variables inside functions without using global variables, using something like pointers (I don't know if they exist in Darkbasic pro so...)

Thank you for your help!

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enderleit

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Joined: 30th May 2007

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Posted: 20th Feb 2011 17:33 Edited at: 20th Feb 2011 17:34

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There are no variable pointers or references in DBPRO...

You might be able to hack something together using make memory... but it wouldn't be very readable...

+ Code Snippet

wordPtr as dword    REM - Create a pointer
wordPtr = make memory(2)  REM - Make it point to a word sized memory location (2 bytes)

var as word               REM - Make a WORD variable.
var = 4321
*wordPtr = var            REM - Assign the variable to the pointers memory.

MyFunction(wordPtr)       REM - Pass the mem pointer when calling a function.

function MyFunction(wPtr as dword)
    fVar as word
    fVar = *wPtr          REM - Get the value from the pointer.
endfunction

- Martin Enderleit
http://sites.google.com/site/menderleit

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BriereAnthony

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Posted: 20th Feb 2011 22:16

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Ohhh alright then!

Thanks alot for your help!

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Newcomers DBPro Corner / Get variable address in memory