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Duval JP
Joined: 22 Jun 2004
Posts: 1161
Location: France
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 Posted: Fri Feb 09, 2024 12:47 pm Post subject: dim and include declaration in a include file |
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hi
I have a lot of global variables and include files and would like to call them in a new include file, I searched the forum but couldn't find it
I would like do
| Code: | ' include files ********************************************************************
$include "declaredim.inc"
Call Dimdeclare() |
where all include file and all declare var are in the sub dimdeclare()
but that dont work
is it impossible ?
jp :cry:
(BASCOM-AVR version : 2.0.8.6 )
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albertsm
Joined: 09 Apr 2004
Posts: 5922
Location: Holland
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| Posted: Fri Feb 09, 2024 3:17 pm Post subject: |
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the variables can not be dynamic declared. they must be known at compile time.
this will not work:
| Code: | if a=1 then
dim b as byte
else
dim b as word
end if
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you can of course #IF with conditional compilation. it is just to make the point.
the way is :
| Code: | $include "myvars.inc"
..other code
print b
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and in the myvars.inc you have :
| Code: | dim b as byte
dim L as long |
i do not see the benefit from an additional call to some sub?
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MWS
Joined: 22 Aug 2009
Posts: 2262
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| Posted: Sat Feb 10, 2024 12:57 pm Post subject: Re: dim and include declaration in a include file |
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| Duval JP wrote: | | Code: | ' include files ********************************************************************
$include "declaredim.inc"
Call Dimdeclare() |
where all include file and all declare var are in the sub dimdeclare()
but that dont work
is it impossible ? |
Yes and No.
What you need to know is, that the compiler notices a variable at the very moment it is dim'd.
| Code: | Dim a, b, c As Byte
a = b + c |
works, while
| Code: | a = b + c
Dim a, b, c As Byte |
does not.
To get no errors, dimensioning of globals must be at top of code, so any following code which uses such a global, sees it already dim'd.
About $include:
Imagine your bas main-code been printed out on endless paper, the same with the inc-dimensioning.
At the very position of the $include "...inc" directive the main code's paper tape is cut open and the inc is inserted and glued together again.
In the end the compiler sees one long paper tape, where he has to crunch on and to finally spit out hex opcode.
incld.inc
dimdec.bas | Code: | $Regfile="m328pdef.dat"
$Crystal=16000000
$hwstack=40
$swstack=16
$framesize=32
$include "incld.inc"
a = b + c |
works, the resulting 'tape' looks like:
result | Code: | $Regfile="m328pdef.dat"
$Crystal=16000000
$hwstack=40
$swstack=16
$framesize=32
'$include "incld.inc"
<--- Dim a,b,c as Byte
a = b + c |
So yes, to bundle dims in one inc works, but selectively dim, for example by two subs with different dim-sets doesn't.
Which already becomes clear by the fact you can dimension a variable within a sub with Dim (not by Local) and at the moment the compiler sees it, it is known as a global var.
Dimensioning it a second time in a second sub will give you an 'variable already dimensioned' error.
As you see the idea of dimensioning by calling a sub is nonsense. |
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Duval JP
Joined: 22 Jun 2004
Posts: 1161
Location: France
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| Posted: Sun Feb 11, 2024 9:58 am Post subject: |
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thank you both Mark and MWS
my problem is that in a large program I start the effective code at line 250, I would like to reduce the first 230 lines, hide them .
I'm looking for something like folding code
but It is not a big pb
JP 
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EDC
Joined: 26 Mar 2014
Posts: 971
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| Posted: Sun Feb 11, 2024 10:03 am Post subject: |
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You can simply fold the code by inserting it into valid condition.
| Code: | Const Region = 1
#If Region ' <--- this can easly be folded
Line 1
'bunch of code here
.
.
.
Line 230
#endif
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You can even name it as "Const Variables = 1" and then #If Variables -> #endif.
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MWS
Joined: 22 Aug 2009
Posts: 2262
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| Posted: Sun Feb 11, 2024 10:12 am Post subject: |
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| Duval JP wrote: | | for something like folding code |
Include them this way and it should fold:
| Code: | #IF 1 = 1
' 250 lines
#ENDIF |
If this doesn't fit you, use #include and put all 250 lines there, it does exactly what you want. The inc can be opened in a separate window, thus it can be looked up quickly.
Beside, this thread again shows the value of a basic rule every TO should follow:
Describe exactly what the problem & goal is. Do not ask for solutions based on your own, already botched up ideas. |
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MWS
Joined: 22 Aug 2009
Posts: 2262
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| Posted: Sun Feb 11, 2024 5:59 pm Post subject: |
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There's one left:
Create a bookmark at line 250 with CTRL+K+[number]
Jump to bookmark with CTRL+Q+[number]
[number] 1 - 8 from the alphanumeric keyboard, num-block doesn't work. |
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sielcon
Joined: 16 Mar 2006
Posts: 74
Location: Argentina
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| Posted: Wed Feb 14, 2024 1:55 am Post subject: |
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Hello Duval JP, I understand your problem, in all my projects I use includes to clarify the code, in fact my main ends up being clear and concise, I'll leave you an example.
| Code: |
$regfile = "m328Pdef.dat"
$crystal = 16000000
$hwstack = 100
$swstack = 100
$framesize = 100
Config Clockdiv = 1
Config Submode = New
Debug On
'*******************************************************************************
$include "defini.inc"
$include "subs.inc"
$include "interrupt.inc"
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This way you edit all the includes in separate files and it becomes much more bearable in long projects.
Kind regards |
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