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DarkBASIC Professional Discussion / Global command and function bug

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MrTAToad

Years of Service

User Offline

Joined: 26th Aug 2002

Location: United Kingdom

Posted: 23rd Mar 2003 12:53 Edited at: 23rd Mar 2003 13:03

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With the following code :

+ Code Snippet

global ptr as DWORD
ptr=7
test(ptr,1,23)
wait key

function test(ptr as DWORD,d as DWORD,dx as DWORD)
   text 0,0,str$(ptr)+" "+str$(d)+" "+str$(dx)
endfunction

You will find that the d parameter is passed incorrectly incorrectly (7,7,23) instead of 7,1,23. It seems the ptr value overwrites d...

You can get around this by defining ptr as local (ptr as DWORD). However, this doesn't work if you want to return a value from a function and modify the global variable.

Good news everyone! I really am THAT good...
http://www.nickk.nildram.co.uk/ for great plug-ins - oh my, yes!

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