Article View: comp.std.c++
Article #1620Re: Why not A::A(something) : A(other) {} ?
From: David Vandevoorde
Date: Fri, 04 Aug 1995 23:03
Date: Fri, 04 Aug 1995 23:03
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1332 bytes
In article <3vtd09$83f@usenet.rpi.edu>, Lance Page <page@cat.rpi.edu> wrote:
>
>I propose that a constructor for a class A be allowed to invoke another
>constructor of A in place of its base class & member initializers.
>e.g.:
>
>class A {
> A(other);
> A(something) : A(other) {}
> ...
>};
>
[...]
>Anyway... "why not?".
>
>-Lance Page
Except for the initializer-list, I don't see how factoring out the
common construction adds significant overhead:
struct A {
A("other"): "init_list" { ... construct(common); ... }
A("something"): "init_list" { ... construct("common"); ... }
// ...
private:
void construct("common") ...
// ...
};
The initializer list must be repeated, but I think that is rarely
a problem, is it?
Daveed
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From: vandevod@ro.cs.rpi.edu (David Vandevoorde)
Newsgroups: comp.std.c++
Subject: Re: Why not A::A(something) : A(other) {} ?
Date: 4 Aug 1995 23:03:10 GMT
Organization: Computer Science Department at Rensselaer, Troy, NY
Message-ID: <3vu8ve$e6h@usenet.rpi.edu>
References: <3vtd09$83f@usenet.rpi.edu>
NNTP-Posting-Host: ro.cs.rpi.edu
Summary: How significant a benefit is it really?
Keywords: private member construction