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[C++ PATCH] Renames/adjustments of 1z to 17

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https://gcc.gnu.org/ml/gcc-patches/2017-09/msg01051.html
ReviewedBy: Sandra Loosemore <sandra@codesourcery.com>
	* doc/standards.texi: Fix C++17 description.  Update URLs for
	C++11 & 14.

From-SVN: r252834
This commit is contained in:
Nathan Sidwell 2017-09-15 18:31:56 +00:00 committed by Nathan Sidwell
parent 500ac45223
commit 39ebef2cf1
2 changed files with 14 additions and 11 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2017-09-15 Nathan Sidwell <nathan@acm.org>
* doc/standards.texi: Fix C++17 description. Update URLs for
C++11 & 14.
2017-09-15 Bernd Edlinger <bernd.edlinger@hotmail.de>
* common.opt (Wcast-align=strict): New warning option.

20
gcc/doc/standards.texi
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@ -196,24 +196,22 @@ A revised ISO C++ standard was published in 2011 as ISO/IEC
14882:2011, and is referred to as C++11; before its publication it was
commonly referred to as C++0x. C++11 contains several changes to the
C++ language, all of which have been implemented in GCC@. For details
see @uref{https://gcc.gnu.org/projects/@/cxx0x.html}.
see @uref{https://gcc.gnu.org/projects/@/cxx-status.html#cxx11}.
To select this standard in GCC, use the option @option{-std=c++11}.
Another revised ISO C++ standard was published in 2014 as ISO/IEC
14882:2014, and is referred to as C++14; before its publication it was
sometimes referred to as C++1y. C++14 contains several further
changes to the C++ language, all of which have been implemented in GCC@.
For details see @uref{https://gcc.gnu.org/projects/@/cxx1y.html}.
For details see @uref{https://gcc.gnu.org/projects/@/cxx-status.html#cxx14}.
To select this standard in GCC, use the option @option{-std=c++14}.
GCC also supports the C++ Concepts Technical Specification,
ISO/IEC TS 19217:2015, which allows constraints to be defined for templates,
allowing template arguments to be checked and for templates to be
overloaded or specialized based on the constraints. Support for C++ Concepts
is included in an experimental C++1z mode that corresponds to the next
revision of the ISO C++ standard, expected to be published in 2017. To enable
C++1z support in GCC, use the option @option{-std=c++17} or
@option{-std=c++1z}.
The C++ language was further revised in 2017 and ISO/IEC 14882:2017 was
published. This is referred to as C++17, and before publication was
often referred to as C++1z. GCC supports all the changes in the new
specification. For further details see
@uref{https://gcc.gnu.org/projects/@/cxx-status.html#cxx1z}. Use the option
@option{-std=c++17} to select this variant of C++.
More information about the C++ standards is available on the ISO C++
committee's web site at @uref{http://www.open-std.org/@/jtc1/@/sc22/@/wg21/}.
@ -232,7 +230,7 @@ select an extended version of the C++ language explicitly with
@option{-std=gnu++98} (for C++98 with GNU extensions), or
@option{-std=gnu++11} (for C++11 with GNU extensions), or
@option{-std=gnu++14} (for C++14 with GNU extensions), or
@option{-std=gnu++1z} (for C++1z with GNU extensions).
@option{-std=gnu++17} (for C++17 with GNU extensions).
The default, if
no C++ language dialect options are given, is @option{-std=gnu++14}.