[Bug libstdc++/59987] New: [C++11]: Missing ios_base::hexfloat format specifier

[Bug libstdc++/59987] New: [C++11]: Missing ios_base::hexfloat format specifier

[npl at chello dot at]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59987

            Bug ID: 59987
           Summary: [C++11]: Missing ios_base::hexfloat format specifier
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: npl at chello dot at

The specifier for hexadecimal floats is missing:
http://www.cplusplus.com/reference/ios/hexfloat/
I suppose the parsing of this format isnt working either (only tested this with
gcc 4.7, but there doesnt seem to be any changes).

stringstream instream("0x1.0624dd2f1a9fcp-10");
double val;
instream >> val; // should be  0.001

[Bug libstdc++/59987] [C++11]: Missing ios_base::hexfloat format specifier

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59987

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2014-09-19
           Assignee|unassigned at gcc dot gnu.org      |redi at gcc dot gnu.org
   Target Milestone|---                         |5.0
     Ever confirmed|0                           |1

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
There's a patch for this waiting to be applied.

[Bug libstdc++/59987] [C++11]: Missing ios_base::hexfloat format specifier

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59987

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Mon Oct  6 15:55:53 2014
New Revision: 215952

URL: https://gcc.gnu.org/viewcvs?rev=215952&root=gcc&view=rev
Log:
2014-10-06  Rüdiger Sonderfeld  <ruediger@c-plusplus.de>
        Jonathan Wakely  <jwakely@redhat.com>

    PR libstdc++/59987
    * doc/xml/manual/status_cxx2011.xml: Remove hexfloat from notes.
    * doc/html/manual/status.html: Regenerate.
    * include/bits/ios_base.h (hexfloat): New function.
    (defaultfloat): New function.
    * src/c++98/locale_facets.cc (__num_base::_S_format_float): Support
    hexadecimal floating point format.
    * testsuite/27_io/basic_ostream/inserters_arithmetic/char/hexfloat.cc:
    New file.

Added:
   
trunk/libstdc++-v3/testsuite/27_io/basic_ostream/inserters_arithmetic/char/hexfloat.cc
Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/doc/html/manual/status.html
    trunk/libstdc++-v3/doc/xml/manual/status_cxx2011.xml
    trunk/libstdc++-v3/include/bits/ios_base.h
    trunk/libstdc++-v3/src/c++98/locale_facets.cc
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Subject: [Bug libstdc++/59987] [C++11]: Missing ios_base::hexfloat format specifier
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idY987

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
std::hexfloat and std::defaultfloat support is committed now.

Parsing hexadecimal floats is not supported in C++, that is a known issue, see
http://cplusplus.github.io/LWG/lwg-active.html#2381