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From: ldg@drywit.ATT.COM (XMRB30000-GibbonsD(DRR6702)262)
Newsgroups: comp.lang.c++
Subject: Re: Pointer to member function - Bug???
Message-ID: <161@cbnewsb.ATT.COM>
Date: 29 Dec 89 15:16:30 GMT
References: <2580@erix.ericsson.se>
Sender: news@cbnewsb.ATT.COM
Reply-To: ldg@druhi.ATT.COM
Lines: 28

From article <2580@erix.ericsson.se>, by euaeny@euas10c19.ericsson.se (Erik Nyquist):
> 
> Why isn't the program accepted?
> main(){
>   D d;
>   void (B::*bfunction)(char*) = B::b_method;
>   (d.*bfunction)("Hallo, World!");
>   bfunction = D::d_method;
>   (d.*bfunction)("Goodbye, World!");
> }
> 

This code is an error and the Sun compiler correct.
The line

	bfunction = D::method;

is attempting to assign a ptr-to-D-member to
to a ptr-to-B-member. The passage on pg 26 of the
C++ Reference Manual sanctions just the opposite operation.



--
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-- Doug Gibbons			| ldg@druhi.ATT.COM or att!druhi!ldg
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