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* [Bug web/103877] New: libstdc++ docs give a bad recommendation for printing C++ defines
@ 2021-12-31 14:43 blubban at gmail dot com
  2021-12-31 18:59 ` [Bug libstdc++/103877] " redi at gcc dot gnu.org
                   ` (7 more replies)
  0 siblings, 8 replies; 9+ messages in thread
From: blubban at gmail dot com @ 2021-12-31 14:43 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103877

            Bug ID: 103877
           Summary: libstdc++ docs give a bad recommendation for printing
                    C++ defines
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: web
          Assignee: unassigned at gcc dot gnu.org
          Reporter: blubban at gmail dot com
  Target Milestone: ---

https://gcc.gnu.org/onlinedocs/libstdc++/faq.html#faq.predefined

> You can also run g++ -E -dM - < /dev/null" to display a
> list of predefined macros for any particular installation.

Issue 1: The unmatched quote.

Issue 2: g++ -E defaults to C mode, where _GNU_SOURCE is, in fact, not defined.
The correct command is  g++ -E -dM -xc++ - < /dev/null

^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug libstdc++/103877] libstdc++ docs give a bad recommendation for printing C++ defines
  2021-12-31 14:43 [Bug web/103877] New: libstdc++ docs give a bad recommendation for printing C++ defines blubban at gmail dot com
@ 2021-12-31 18:59 ` redi at gcc dot gnu.org
  2022-01-05 13:47 ` cvs-commit at gcc dot gnu.org
                   ` (6 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: redi at gcc dot gnu.org @ 2021-12-31 18:59 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103877

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |documentation
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2021-12-31
     Ever confirmed|0                           |1
          Component|web                         |libstdc++

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Confirmed.

"g++ -E -dM -x c++ /dev/null" is simpler.

^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug libstdc++/103877] libstdc++ docs give a bad recommendation for printing C++ defines
  2021-12-31 14:43 [Bug web/103877] New: libstdc++ docs give a bad recommendation for printing C++ defines blubban at gmail dot com
  2021-12-31 18:59 ` [Bug libstdc++/103877] " redi at gcc dot gnu.org
@ 2022-01-05 13:47 ` cvs-commit at gcc dot gnu.org
  2022-01-05 13:50 ` redi at gcc dot gnu.org
                   ` (5 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-01-05 13:47 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103877

--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jonathan Wakely <redi@gcc.gnu.org>:

https://gcc.gnu.org/g:cebe875f6f44b905a0d56a2007b5a638a33a893c

commit r12-6259-gcebe875f6f44b905a0d56a2007b5a638a33a893c
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Tue Jan 4 15:54:16 2022 +0000

    libstdc++: Fix example preprocessor command in FAQ [PR103877]

    libstdc++-v3/ChangeLog:

            PR libstdc++/103877
            * doc/xml/faq.xml: Add '-x c++' to preprocessor command.
            * doc/html/faq.html: Regenerate.

^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug libstdc++/103877] libstdc++ docs give a bad recommendation for printing C++ defines
  2021-12-31 14:43 [Bug web/103877] New: libstdc++ docs give a bad recommendation for printing C++ defines blubban at gmail dot com
  2021-12-31 18:59 ` [Bug libstdc++/103877] " redi at gcc dot gnu.org
  2022-01-05 13:47 ` cvs-commit at gcc dot gnu.org
@ 2022-01-05 13:50 ` redi at gcc dot gnu.org
  2022-01-05 22:07 ` cvs-commit at gcc dot gnu.org
                   ` (4 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: redi at gcc dot gnu.org @ 2022-01-05 13:50 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103877

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
   Target Milestone|---                         |12.0
         Resolution|---                         |FIXED

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Fixed on trunk.

^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug libstdc++/103877] libstdc++ docs give a bad recommendation for printing C++ defines
  2021-12-31 14:43 [Bug web/103877] New: libstdc++ docs give a bad recommendation for printing C++ defines blubban at gmail dot com
                   ` (2 preceding siblings ...)
  2022-01-05 13:50 ` redi at gcc dot gnu.org
@ 2022-01-05 22:07 ` cvs-commit at gcc dot gnu.org
  2022-01-05 22:07 ` cvs-commit at gcc dot gnu.org
                   ` (3 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-01-05 22:07 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103877

--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Jonathan Wakely
<redi@gcc.gnu.org>:

https://gcc.gnu.org/g:88518e5ae0c7b4ed87ffa4ba39c1ff93c7d146dd

commit r10-10380-g88518e5ae0c7b4ed87ffa4ba39c1ff93c7d146dd
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Tue Jan 4 15:54:16 2022 +0000

    libstdc++: Fix example preprocessor command in FAQ [PR103877]

    libstdc++-v3/ChangeLog:

            PR libstdc++/103877
            * doc/xml/faq.xml: Add '-x c++' to preprocessor command.
            * doc/html/faq.html: Regenerate.

    (cherry picked from commit cebe875f6f44b905a0d56a2007b5a638a33a893c)

^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug libstdc++/103877] libstdc++ docs give a bad recommendation for printing C++ defines
  2021-12-31 14:43 [Bug web/103877] New: libstdc++ docs give a bad recommendation for printing C++ defines blubban at gmail dot com
                   ` (3 preceding siblings ...)
  2022-01-05 22:07 ` cvs-commit at gcc dot gnu.org
@ 2022-01-05 22:07 ` cvs-commit at gcc dot gnu.org
  2022-01-05 22:08 ` redi at gcc dot gnu.org
                   ` (2 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-01-05 22:07 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103877

--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-11 branch has been updated by Jonathan Wakely
<redi@gcc.gnu.org>:

https://gcc.gnu.org/g:39e5b756e1412a399613d7df25d8730e7de1d989

commit r11-9439-g39e5b756e1412a399613d7df25d8730e7de1d989
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Tue Jan 4 15:54:16 2022 +0000

    libstdc++: Fix example preprocessor command in FAQ [PR103877]

    libstdc++-v3/ChangeLog:

            PR libstdc++/103877
            * doc/xml/faq.xml: Add '-x c++' to preprocessor command.
            * doc/html/faq.html: Regenerate.

    (cherry picked from commit cebe875f6f44b905a0d56a2007b5a638a33a893c)

^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug libstdc++/103877] libstdc++ docs give a bad recommendation for printing C++ defines
  2021-12-31 14:43 [Bug web/103877] New: libstdc++ docs give a bad recommendation for printing C++ defines blubban at gmail dot com
                   ` (4 preceding siblings ...)
  2022-01-05 22:07 ` cvs-commit at gcc dot gnu.org
@ 2022-01-05 22:08 ` redi at gcc dot gnu.org
  2022-05-09 16:39 ` cvs-commit at gcc dot gnu.org
  2022-05-09 19:44 ` redi at gcc dot gnu.org
  7 siblings, 0 replies; 9+ messages in thread
From: redi at gcc dot gnu.org @ 2022-01-05 22:08 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103877

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|12.0                        |10.4

^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug libstdc++/103877] libstdc++ docs give a bad recommendation for printing C++ defines
  2021-12-31 14:43 [Bug web/103877] New: libstdc++ docs give a bad recommendation for printing C++ defines blubban at gmail dot com
                   ` (5 preceding siblings ...)
  2022-01-05 22:08 ` redi at gcc dot gnu.org
@ 2022-05-09 16:39 ` cvs-commit at gcc dot gnu.org
  2022-05-09 19:44 ` redi at gcc dot gnu.org
  7 siblings, 0 replies; 9+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-05-09 16:39 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103877

--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-9 branch has been updated by Jonathan Wakely
<redi@gcc.gnu.org>:

https://gcc.gnu.org/g:dae73190d42a8074cc393c759338942d0de8b2bd

commit r9-10054-gdae73190d42a8074cc393c759338942d0de8b2bd
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Tue Jan 4 15:54:16 2022 +0000

    libstdc++: Fix example preprocessor command in FAQ [PR103877]

    libstdc++-v3/ChangeLog:

            PR libstdc++/103877
            * doc/xml/faq.xml: Add '-x c++' to preprocessor command.
            * doc/html/faq.html: Regenerate.

    (cherry picked from commit cebe875f6f44b905a0d56a2007b5a638a33a893c)

^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug libstdc++/103877] libstdc++ docs give a bad recommendation for printing C++ defines
  2021-12-31 14:43 [Bug web/103877] New: libstdc++ docs give a bad recommendation for printing C++ defines blubban at gmail dot com
                   ` (6 preceding siblings ...)
  2022-05-09 16:39 ` cvs-commit at gcc dot gnu.org
@ 2022-05-09 19:44 ` redi at gcc dot gnu.org
  7 siblings, 0 replies; 9+ messages in thread
From: redi at gcc dot gnu.org @ 2022-05-09 19:44 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103877

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|10.4                        |9.5

^ permalink raw reply	[flat|nested] 9+ messages in thread

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2021-12-31 14:43 [Bug web/103877] New: libstdc++ docs give a bad recommendation for printing C++ defines blubban at gmail dot com
2021-12-31 18:59 ` [Bug libstdc++/103877] " redi at gcc dot gnu.org
2022-01-05 13:47 ` cvs-commit at gcc dot gnu.org
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