the parameter has no initial value before reference
Gerwin Pfab
pb at schenk.isar.de
Tue Jul 17 07:20:12 UTC 2001
carerie,
_ISR_Disable( level) is a makro. level is an output parameter and gets the
value inside _ISR_Disable().
Gerwin Pfab
Gerwin Pfab <pb at schenk.isar.de> Dr. Schenk Industriemesstechnik GmbH
Dipl. Ing. Einsteinstrasse 37
Software Engineering D-82152 Martinsried
Tel: +49-89-85695-0
Fax: +49-89-85695-200
On Tue, 17 Jul 2001, careri/sed wrote:
> Consider the following code in chain.c:
>
> void _Chain_Append(
> Chain_Control *the_chain,
> Chain_Node *node
> )
> {
> ISR_Level level;
>
> _ISR_Disable( level );
> _Chain_Append_unprotected( the_chain, node );
> _ISR_Enable( level );
> }
>
> The parameter level has no initial value when _ISR_Disable is called.
>
> Rong
>
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