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From: c60c-2ca@e260-2a.berkeley.edu (Andrew Choi)
Newsgroups: comp.lang.c++
Subject: Re: Resolving an Overloaded Function Call
Keywords: overloading
Message-ID: <1990May3.030546.1885@agate.berkeley.edu>
Date: 3 May 90 03:05:46 GMT
References: <35925@think.Think.COM>
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Reply-To: c60c-2ca@e260-2a (Andrew Choi)
Organization: University of California, Berkeley
Lines: 29

In article <35925@think.Think.COM> simons@think.com (Joshua Simons) writes:
>
>	I have a question about resolving overloaded function calls in
>C++. In Lippman's book, 'The C++ Primer' there is an example on page 155
>which says that the following function call:
>
>	print( 'a' ) ;
>
>exactly matches the overloading:
>
>	extern void print( char ) ;
>
>	Is this an error? I don't know C++, but in C the type of the
>expression 'a' is 'int' not char so I don't see how this could be an
>exact match. Is C++ different from C in this regard?

	No, this is not an error.  In C++ version 2.0, a character
literal/variable is considered to match perfectly with a formal
parameter of type `char'.  It will only considered to match
an `int' (and higher derived type) if a perfect match is not found.

	Hope this helps.




Andrew Choi
Internet Address:  c60c-2ca@web.berkeley.edu
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