Page 1 of 1
Byte Array inside Structure Error
Posted: Tue Jun 28, 2011 5:11 pm
by Mr52
Structure GENERALINPUT
dwType .l
xi.b(23)
EndStructure
When i enter this i get
---------------------------
PureBasic
---------------------------
Line 3: Garbage at the end of the line.
---------------------------
OK
---------------------------
Please tell me why
Re: Byte Array inside Structure Error
Posted: Tue Jun 28, 2011 5:12 pm
by skywalk
Add... Array xi.b(23)
Re: Byte Array inside Structure Error
Posted: Tue Jun 28, 2011 5:12 pm
by STARGÅTE
Code: Select all
Structure GENERALINPUT
dwType .l
xi.b[24]
EndStructure
or
Code: Select all
Structure GENERALINPUT
dwType .l
Array xi.b(23)
EndStructure
Re: Byte Array inside Structure Error
Posted: Tue Jun 28, 2011 5:15 pm
by Mr52
wow thank you didnt know PB has Array as keyword
Re: Byte Array inside Structure Error
Posted: Tue Jun 28, 2011 6:33 pm
by helpy
Differences between the two ways of defining arrays in Structures:
Code: Select all
Structure GENERALINPUT1
dwType .l
xi.b[24]
EndStructure
Structure GENERALINPUT2
dwType .l
Array xi.b(23)
EndStructure
Debug SizeOf(GENERALINPUT1)
Debug SizeOf(GENERALINPUT2)
The first is an static array, which you can not resize! The byte array is part of the structure (see size of structure)
The second one is an dynamic array, which you can resize. The structure only contains an pointer to the array!
Maybe others can add more information and differences!
cu,
guido
Re: Byte Array inside Structure Error
Posted: Tue Jun 28, 2011 10:05 pm
by netmaestro
The first is an static array, which you can not resize! The byte array is part of the structure (see size of structure)
Not exactly true. If you put zero in the brackets you have a completely dynamic array, any size you like, which can be accessed by index as long as the memory it points to is valid. A small example:
Code: Select all
Structure stuff
char.b[0]
EndStructure
a$ = "start"+Space(50000)+"end"
*char.stuff = AllocateMemory(50009)
PokeS(*char, a$)
Debug Chr(*char\char[50005])+Chr(*char\char[50006])+Chr(*char\char[50007])
The purifier is perfectly happy with this code. Of course, if you put anything greater than zero in, you can't go past the boundary. In that case, it's static and un-resizeable.