Subj : Re: Problems with getvect/setvect under Borland C 3.1
To   : borland.public.cpp.borlandcpp
From : "Ed Mulroy [TeamB]" <dont_email_me@bitbuc.ket>
Date : Fri Jan 30 2004 08:28 pm

The error is not about getvect or setvect but about the function pointer
pointer that is to be associated with the interrupt.

I don't have BC++ 3.1 mounted but this is from the DOS.H of TC++ 1.01 so
should be close to what you have.

#ifdef __cplusplus
void interrupt (far * _CType getvect(int __interruptno)) (...);
void _CType setvect (int __interruptno, void interrupt (far *__isr) (...));
   :
#else
void interrupt  (far * _CType getvect(int __interruptno)) ();
void    _CType setvect (int __interruptno, void interrupt (far *__isr) ());
   :
#endif

In a function prototype:
In C++ funcname() means that it takes no calling arguments.
In C funcname() means the calling argument list has not yet been specified.

Write the function you are to install as the ISR with an elipsis, with (...)

..  Ed

> Dmytro Bablinyuk wrote in message
> news:401ae2cf$1@newsgroups.borland.com...
>
> I have an old DOS serial communication program which
> I want to compile.
> The program I told was designed under Borland C 3.1 and
> therefore I am trying to compile it under Borland C 3.1.
> During compilation I have a error for the line oldvect =
> getvect(comp.intr):
> Error: Cannot convert 'void (interrupt *)(...)' to 'void (interrupt*)()'
>
> The same problem for setvect.
> I don't understand this. The help shows that everything should be
> right - getvect takes one integer parameter.
> What's wrong with that?
>
> Could somebody please help me with this, may be I am missing
> something.

.