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Article #2619

overload resolution question

#2619
From: Bob Kline
Date: Sat, 18 Nov 1995 03:16
33 lines
2019 bytes
We notice that the ARM has the following language:

"Since for any type T, a T and a T& accept the same set of initializer
values, functions with argument types differing only in this respect
may not have the same. ....  Similarly, since for any type T, a T, a
const T, and a volatile T accept the same set of initializer values, 
functions with argument types differing only in this respect may not
have the same name."

However, we are unable to find the equivalent language in the latest
draft.  Is this intentional?  Is the following call of f() ambiguous?

void f(const A&);
void f(const A);
....
A a;
f(a);

We get different results from different compilers.  One rejects the
call as ambiguous, and the other resolves the call to the second
version.  Is the answer any different if the second version of 
f() is declared 'void f(A);' (without const in front of A)?

--
/*----------------------------------------------------------------------*/
/* Bob Kline                                       Stream International */
/* bob_kline@stream.com               formerly Corporate Software, Inc. */
/* voice: (703) 522-0820 x-311                      fax: (703) 522-5407 */
/*----------------------------------------------------------------------*/
---
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Path: arc1-ca.pugleaf.net!in2.uu.net!bounce-back
Date: 18 Nov 95 03:16:35 GMT
Approved: fjh@cs.mu.oz.au
From: bkline@cortex.nlm.nih.gov (Bob Kline)
Newsgroups: comp.std.c++
Subject: overload resolution question
X-Original-Date: 17 Nov 1995 19:57:00 GMT
Organization: National Library of Medicine
Message-ID: <48ipec$9vk@lhc.nlm.nih.gov>
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