Implement P0001R1 - C++17 removal of register storage class specifier

Jakub Jelinek jakub@redhat.com
Fri Sep 30 08:20:00 GMT 2016


Hi!

On Thu, Sep 29, 2016 at 10:57:07PM +0000, Joseph Myers wrote:
> This is missing documentation of the new -Wregister option in invoke.texi.

While I had it in my head when working on the patch, I forgot to do that in the end.
Fixed thusly, ok for trunk?

2016-09-30  Jakub Jelinek  <jakub@redhat.com>

	* doc/invoke.texi (-Wregister): Document.

--- gcc/doc/invoke.texi.jj	2016-09-29 22:53:11.000000000 +0200
+++ gcc/doc/invoke.texi	2016-09-30 09:55:28.819581224 +0200
@@ -213,7 +213,7 @@ in the following sections.
 -Wabi=@var{n}  -Wabi-tag  -Wconversion-null  -Wctor-dtor-privacy @gol
 -Wdelete-non-virtual-dtor -Wliteral-suffix -Wmultiple-inheritance @gol
 -Wnamespaces -Wnarrowing @gol
--Wnoexcept -Wnon-virtual-dtor  -Wreorder @gol
+-Wnoexcept -Wnon-virtual-dtor  -Wreorder -Wregister @gol
 -Weffc++  -Wstrict-null-sentinel -Wtemplates @gol
 -Wno-non-template-friend  -Wold-style-cast @gol
 -Woverloaded-virtual  -Wno-pmf-conversions @gol
@@ -2840,6 +2840,15 @@ case it is possible but unsafe to delete
 class through a pointer to the class itself or base class.  This
 warning is automatically enabled if @option{-Weffc++} is specified.
 
+@item -Wregister @r{(C++ and Objective-C++ only)}
+@opindex Wregister
+@opindex Wno-register
+Warn on uses of the @code{register} storage class specifier, except
+when it is part of the GNU @ref{Explicit Register Variables} extension.
+The use of the @code{register} keyword as storage class specifier has
+been deprecated in C++11 and removed in C++17.
+Enabled by default with @option{-std=c++1z}.
+
 @item -Wreorder @r{(C++ and Objective-C++ only)}
 @opindex Wreorder
 @opindex Wno-reorder


	Jakub



More information about the Gcc-patches mailing list