From:	"Jason" <jr_4226 AT yahoo DOT com>
Newsgroups:	comp.os.msdos.djgpp
References:	<3cf704ff_1 AT news DOT iprimus DOT com DOT au>
Subject:	Re: Allegro LOCK_FUNCTION issue using C++
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Date:	Fri, 31 May 2002 05:21:38 GMT
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To:	djgpp AT delorie DOT com
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Reply-To:	djgpp AT delorie DOT com

I can explicitly cast my function with (void*), ie.
LOCK_FUNCTION((void*)TimerInterrupt), but is this safe?

Jase.

"Jason" <jr_4226 AT yahoo DOT com> wrote in message
news:3cf704ff_1 AT news DOT iprimus DOT com DOT au...
> Hi again,
>
>   When I compile a piece of code in C using the LOCK_FUNCTION() command,
all
> is well.  But that *exact* piece of code with a .cpp extension gives a
> compiler error.  As an example, I tried compiling the 'extimer' example as
> provided with Allegro.  All was fine.  But, look at what happens when you
> change the name to extimer.cpp:
>
> C:\djgpp\allegro\examples>gcc -o extimer.exe extimer.cpp -lalleg
> extimer.cpp: In function `int main()':
> extimer.cpp:84: invalid conversion from `void (*)()' to `void*'
> extimer.cpp:85: invalid conversion from `void (*)()' to `void*'
> extimer.cpp:86: invalid conversion from `void (*)()' to `void*'
>
>   Why would there be problems with this using C++?  The reason I found
this
> was because I'm trying to compile a C++ program using the install_int
> function, but keeps giving this strange (well, strange to me) error.
>
>   Any ideas?
>
>   Thanks,
>
>   Jase.
>
>
>

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