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From "Farid Zaripov (JIRA)" <j...@apache.org>
Subject [jira] Commented: (STDCXX-640) std::num_get::do_get() parses no more than 128 characters
Date Fri, 02 Nov 2007 18:19:50 GMT

    [ https://issues.apache.org/jira/browse/STDCXX-640?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12539657
] 

Farid Zaripov commented on STDCXX-640:
--------------------------------------

The reason is the fixed size buffer in num_get<_CharT, _InputIter>::_C_get(), _num_get.cc,
line 253.

> std::num_get::do_get() parses no more than 128 characters
> ---------------------------------------------------------
>
>                 Key: STDCXX-640
>                 URL: https://issues.apache.org/jira/browse/STDCXX-640
>             Project: C++ Standard Library
>          Issue Type: Bug
>          Components: 22. Localization
>    Affects Versions: 4.1.2, 4.1.3, 4.1.4, 4.2
>         Environment: All
>            Reporter: Farid Zaripov
>            Priority: Minor
>
> The following program fails on assert.
> #include <cassert>
> #include <sstream>
> #include <string>
> int main ()
> {
>     typedef std::num_get<char> NumGet;
>     typedef std::istreambuf_iterator<char> Iter;
>     std::locale loc;
>     for (unsigned i = 0; i < 10000; ++i) {
>         std::string s (i, '0');
>         s.push_back ('1');
>         std::istringstream is (s);
>         std::ios::iostate state = std::ios::goodbit;
>         long val = 0;
>         std::use_facet<NumGet> (loc).get (Iter (is), Iter (), is, state, val);
>         assert (1 == val && std::ios::eofbit == state);
>     }
>     return 0;
> }

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