[jira] Updated: (STDCXX-930) [LWG #454] basic_filebuf::open should accept wchar_t names

["Martin Sebor (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/STDCXX-930?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Martin Sebor updated STDCXX-930:
--------------------------------

    Remaining Estimate: 2h  (was: 0h)

Estimated remaining time to complete a test for the feature.

> [LWG #454] basic_filebuf::open should accept wchar_t names
> ----------------------------------------------------------
>
>                 Key: STDCXX-930
>                 URL: https://issues.apache.org/jira/browse/STDCXX-930
>             Project: C++ Standard Library
>          Issue Type: Bug
>          Components: 27. Input/Output
>    Affects Versions: 4.2.1
>            Reporter: Martin Sebor
>            Assignee: Martin Sebor
>            Priority: Minor
>             Fix For: 4.3
>
>   Original Estimate: 6h
>          Time Spent: 6h
>  Remaining Estimate: 2h
>
> LWG issue [454|http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2577.html#454] proposes to change [filebuf.members] from:
> {quote}
> {noformat}
>     basic_filebuf<charT,traits>* open(const char* s, ios_base::openmode mode);
> {noformat}
>     ??Effects??: If {{is_open() != false}}, returns a null pointer. Otherwise, initializes the {{filebuf}} as required. It then opens a file, if possible, whose name is the NTBS ??s?? ("as if" by calling {{std::fopen(??s??, ??modstr??)}}).
> {quote}
> to:
> {quote}
> {noformat}
>     basic_filebuf<charT,traits>* open(const char* s, ios_base::openmode mode);
>     basic_filebuf<charT,traits>* open(const wchar_t* ws, ios_base::openmode mode);
> {noformat}
>     ??Effects??: If {{is_open() != false}}, returns a null pointer. Otherwise, initializes the {{filebuf}} as required. It then opens a file, if possible, whose name is the NTBS ??s?? ("as if" by calling {{std::fopen(??s??, ??modstr??)}}). For the second signature, the NTBS ??s?? is determined from the WCBS ??ws?? in an implementation-defined manner.
>     (NOTE: For a system that "naturally" represents a filename as a WCBS, the NTBS ??s?? in the first signature may instead be mapped to a WCBS; if so, it follows the same mapping rules as the first argument to {{open}}.)
> {quote}

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