* bug in libstdc++ bitset
@ 2002-08-19 6:05 Ed Parcell
2002-08-19 6:30 ` Andrew Pinski
2002-08-19 7:57 ` Phil Edwards
0 siblings, 2 replies; 3+ messages in thread
From: Ed Parcell @ 2002-08-19 6:05 UTC (permalink / raw)
To: gcc
Hi,
Sorry that this is almost definitely the wrong place to send this to.
Anyway, here goes. bitset::none() and bitset::any() appear to only look
at the first word. Here is example code to exhibit this:
#include <bitset>
#include <iostream>
void main() {
bitset <33> b;
b.set(32);
cout << b << ' ' << b.count() << ' ' << b.none() << '\n';
}
I am using libstdc++ in the debian package libstdc++2.10, which has the
description "This is not a final release, but taken from the CVS
gcc-2_95-branch
(dated 2001-10-02)". This bug also occurs on libstdc++3-3.0.1-3 I
believe.
Thanks,
Ed.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: bug in libstdc++ bitset
2002-08-19 6:05 bug in libstdc++ bitset Ed Parcell
@ 2002-08-19 6:30 ` Andrew Pinski
2002-08-19 7:57 ` Phil Edwards
1 sibling, 0 replies; 3+ messages in thread
From: Andrew Pinski @ 2002-08-19 6:30 UTC (permalink / raw)
To: Ed Parcell; +Cc: gcc
After changing it to let it compile under 3.x,
#include <bitset>
#include <iostream>
using namespace std;
int main() {
bitset <33> b;
b.set(32);
cout << b << ' ' << b.count() << ' ' << b.none() << '\n';
}
With the current cvs, it compiles fine and outputs:
100000000000000000000000000000000 1 0
which looks to be the right answer.
Thanks,
Andrew Pinski
On Monday, August 19, 2002, at 09:05 , Ed Parcell wrote:
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: bug in libstdc++ bitset
2002-08-19 6:05 bug in libstdc++ bitset Ed Parcell
2002-08-19 6:30 ` Andrew Pinski
@ 2002-08-19 7:57 ` Phil Edwards
1 sibling, 0 replies; 3+ messages in thread
From: Phil Edwards @ 2002-08-19 7:57 UTC (permalink / raw)
To: Ed Parcell; +Cc: gcc
On Mon, Aug 19, 2002 at 02:05:12PM +0100, Ed Parcell wrote:
> Hi,
>
> Sorry that this is almost definitely the wrong place to send this to.
http://gcc.gnu.org/lists.html
> I am using libstdc++ in the debian package libstdc++2.10, which has the
> description "This is not a final release, but taken from the CVS
> gcc-2_95-branch
> (dated 2001-10-02)".
The 2.x series hasn't been maintained in quite some time. The 3.x library
is a complete rewrite.
Phil
--
I would therefore like to posit that computing's central challenge, viz. "How
not to make a mess of it," has /not/ been met.
- Edsger Dijkstra, 1930-2002
^ permalink raw reply [flat|nested] 3+ messages in thread
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