num_get fails to parse currency in international format
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Key: STDCXX-412
URL: https://issues.apache.org/jira/browse/STDCXX-412
Project: C++ Standard Library
Issue Type: Bug
Components: 22. Localization
Affects Versions: 4.1.3
Environment: gcc 4.1.1 on Linux
Reporter: Mark Brown
The example program money_get fails when extractinng monetary values in
international format such as "USD 1234" probably because of a bug in the
library. From
http://mail-archives.apache.org/mod_mbox/incubator-stdcxx-dev/200705.mbox/[EMAIL
PROTECTED]:
-----Original Message-----
From: [EMAIL PROTECTED]
Sent: Sat, 12 May 2007 14:09:34 -0600
To: stdcxx-dev@incubator.apache.org
Subject: Re: svn commit: r537492 -
/incubator/stdcxx/trunk/doc/stdlibref/money-get.html
Mark Brown wrote:
> Martin,
>
> Thanks for fixing it! I have a question about the new code: Could you show an
> example of an international monetary string that would be correctly parsed by
> the facet? I tried a few but none of them could be parsed. For instance, "USD
> 1234" gives this output:
> USD 1234 --> "" --> 0
> The same happens with g++ and STLport so I suspect I must be doing something
> wrong. Removing the space between the currency symbol and the number didn't
> make a difference.
Hmm, I guess I should have tested the internationalized behavior before
I put it in. I think the code is correct as is and your input should be
correctly parsed by the facet (and produce 1234 on output). I'm not sure
what's going on. Stepping through the code it looks like the money_get
facet ends up retrieving the wrong specialization of moneypunct, i.e.,
moneypunct<char, false> when it needs moneypunct<char, true>. What's
puzzling is that both libstdc++ and STLport behave the same. It seems
like too much of a coincidence for all three implementations to suffer
from the same bug.
In any event, thanks for bringing it to our attention! Can you open an
issue for this as well so we don't forget to investigate it in case I
don't get around to it soon?
Thanks
Martin
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