[LWG #454] basic_filebuf::open should accept wchar_t names
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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
Priority: Minor
Fix For: 4.3
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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