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Re: [Gnucap-devel] Feedback needed, especially non-Linux
From: |
al davis |
Subject: |
Re: [Gnucap-devel] Feedback needed, especially non-Linux |
Date: |
Thu, 22 Feb 2007 19:57:37 -0500 |
User-agent: |
KMail/1.9.5 |
On Thursday 22 February 2007 19:15, David Fang wrote:
> > Consider this program....
> > ================
> > #include <iostream>
> > class foo {
> > public:
> > foo() {std::cout << "Hello world\n";}
> > } x;
> >
> > int main() {}
> > ================
>
> Solution:
>
> If you need iostream facilities during global initialization
> (pre-main), you can guarantee it is set up by inserting:
>
> static const std::ios_base::Init _init;
>
> before uses of std::cout, etc...
>
> > Does it work?
> > How?
Are you telling me that it doesn't? Ahh. ... link order
problem. The language spec requires this to work. It works
for me.
Is that Init_init documented anywhere, in the C++ standard
document? I did not see it in Stroustrup's book. If not, it
is not portable either, no improvement over the link order
issue. If I have 100 files like this, should I put that in all
100 of them? It looks like a hack..
> By the same token, it also makes sure the stream facilities
> stay alive long enough during global destruction, (some
> reference-count like mechanism) since destruction happens in
> reverse order (within each translation unit).
Destruction happens in reverse order, period. That is, in
reverse of the actual construction order.
- [Gnucap-devel] Feedback needed, especially non-Linux, al davis, 2007/02/22
- Re: [Gnucap-devel] Feedback needed, especially non-Linux, David Fang, 2007/02/22
- Re: [Gnucap-devel] Feedback needed, especially non-Linux, David Fang, 2007/02/22
- Re: [Gnucap-devel] Feedback needed, especially non-Linux, al davis, 2007/02/22
- Re: [Gnucap-devel] Feedback needed, especially non-Linux, David Fang, 2007/02/22
- Re: [Gnucap-devel] Feedback needed, especially non-Linux,
al davis <=
- Re: [Gnucap-devel] Feedback needed, especially non-Linux, David Fang, 2007/02/22
- Re: [Gnucap-devel] Feedback needed, especially non-Linux, al davis, 2007/02/22
- Re: [Gnucap-devel] Feedback needed, especially non-Linux, David Fang, 2007/02/22
Re: [Gnucap-devel] Feedback needed, especially non-Linux, al davis, 2007/02/22