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Harbour warning level
Posted: Sat Oct 30, 2010 3:52 pm
by l3whmg
Hello to everyone
Is there someone can help me to understand why the Harbour compiler generates a warning when compiling the code below?
Code: Select all
Line 01 MEMVAR _HMG_SYSDATA
Line 02
Line 03 #include "hmg.ch"
Line 04
Line 05 FUNCTION main()
Line 06
Line 07 LOCAL cLocalVar := ""
Line 08
Line 09 cLocalVar := GetCurrentFolder()
Line 10
Line 11 MSGSTOP( cLocalVar )
Line 12
Line 13 RETURN NIL
Line 14
Line 15 FUNCTION Other()
Line 16
Line 17 LOCAL cLocalVar
Line 18
Line 19 cLocalVar := GetCurrentFolder()
Line 20
Line 21 MSGSTOP( cLocalVar )
Line 22
Line 23 RETURN NIL
hbmk2: Processing configuration: D:\HMG\MiniGui\harbour\bin\hbmk.cfg
Harbour 2.0.0 (Rev. 13372)
Copyright (c) 1999-2010,
http://www.harbour-project.org/
hbwarntest.prg(15) Warning W0032 Variable 'CLOCALVAR' is assigned but not used in function
'MAIN(7)'
If I set warning level to zero no message displayed (of course)
As you can see, in one case raises the alert while the other not.
Is there a solution to use
without warning with level 3?
Best regards
Re: Harbour warning level
Posted: Sat Oct 30, 2010 10:40 pm
by jparada
Hi Luigi,
I think you also have to declare MEMVAR cLocalVar.
Regards
Javier
Re: Harbour warning level
Posted: Mon Nov 01, 2010 3:26 pm
by l3whmg
Hi Javier, many thanks for your fast replay, but...this it's not the solution
In fact two things:
MEMVAR is a declaration statement .... At runtime, the specified variables must be created using the PRIVATE, PARAMETERS or PUBLIC....
. No required for LOCAL. Any way, I tried your suggestion with the same warning.
In my source I've used two times the same var in two different function, but in one case I've used
and in other
(without assigned value); only the first row give me warning
Any way many thanks.
Re: Harbour warning level
Posted: Mon Nov 01, 2010 11:20 pm
by Carlos Britos
l3whmg wrote:Hi Javier, many thanks for your fast replay, but...this it's not the solution
In fact two things:
MEMVAR is a declaration statement .... At runtime, the specified variables must be created using the PRIVATE, PARAMETERS or PUBLIC....
. No required for LOCAL. Any way, I tried your suggestion with the same warning.
In my source I've used two times the same var in two different function, but in one case I've used
and in other
(without assigned value); only the first row give me warning
Any way many thanks.
Hi l3whmg
Is the normal Harbour behaviour of switch -w3
If you assign the "" to cLocalVar and later in the code assign another value then the first assignement is unused, but if you set LOCAL cLocalVar := "" and later use: cLocalVar += "something" then there is no warning.
Re: Harbour warning level
Posted: Tue Nov 02, 2010 5:41 am
by Rathinagiri
If you assign the "" to cLocalVar and later in the code assign another value then the first assignement is unused, but if you set LOCAL cLocalVar := "" and later use: cLocalVar += "something" then there is no warning.
Nice explanation Carlos. Thanks.
Re: Harbour warning level
Posted: Tue Nov 02, 2010 11:13 am
by l3whmg
Hi Carlos, many thanks for you answer.
I had sensed this "behaviour" but I was hoping there was an alternative.
Any way, I will try to align the source code to this rule.
Many thanks