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Jan Kratochvil d2dfe70034 testsuite: Fix C++11 compilation failure for gdb.cp/m-static.exp
gcc-6.2.1-1.fc26.x86_64

g++ -std=c++03:
no warnings

g++:
In file included from /home/jkratoch/redhat/gdb-clean/gdb/testsuite/gdb.cp/m-static.cc:79:0:
/home/jkratoch/redhat/gdb-clean/gdb/testsuite/gdb.cp/m-static.h:9:34: error: ‘constexpr’ needed for in-class initialization of static
data member ‘const float gnu_obj_4::somewhere’ of non-integral type [-fpermissive]
   static const float somewhere = 3.14159;
                                  ^~~~~~~

clang++:
In file included from /home/jkratoch/redhat/gdb-clean/gdb/testsuite/gdb.cp/m-static.cc:79:
/home/jkratoch/redhat/gdb-clean/gdb/testsuite/gdb.cp/m-static.h:9:22: warning: in-class initializer for static data member of type 'const
float' is a GNU extension [-Wgnu-static-float-init]
  static const float somewhere = 3.14159;
                     ^           ~~~~~~~
1 warning generated.

clang++ -std=c++11:
In file included from /home/jkratoch/redhat/gdb-clean/gdb/testsuite/gdb.cp/m-static.cc:79:
/home/jkratoch/redhat/gdb-clean/gdb/testsuite/gdb.cp/m-static.h:9:22: error: in-class initializer for static data member of type 'const
float' requires 'constexpr' specifier [-Wstatic-float-init]
  static const float somewhere = 3.14159;
                     ^           ~~~~~~~
/home/jkratoch/redhat/gdb-clean/gdb/testsuite/gdb.cp/m-static.h:9:3: note: add 'constexpr'
  static const float somewhere = 3.14159;
  ^
  constexpr
1 error generated.

OK for check-in?

After the fix out of the 4 combinations above only this one remains non-empty:

clang++:
In file included from /home/jkratoch/redhat/gdb-clean/gdb/testsuite/gdb.cp/m-static.cc:79:
/home/jkratoch/redhat/gdb-clean/gdb/testsuite/gdb.cp/m-static.h:9:22: warning: in-class initializer for static data member of type 'const
float' is a GNU extension [-Wgnu-static-float-init]
  static const float somewhere = 3.14159;
                     ^           ~~~~~~~
1 warning generated.

On Thu, 15 Sep 2016 15:10:50 +0200, Pedro Alves wrote:

Hmm, OK, now that I read the test, I think you were right in trying to
keep it safe, actually.  The .exp file has:

if { $non_dwarf } { setup_xfail *-*-* }
gdb_test "print test4.everywhere" "\\$\[0-9\].* = 317" "static const int initialized in class definition"
if { $non_dwarf } { setup_xfail *-*-* }
gdb_test "print test4.somewhere" "\\$\[0-9\].* = 3.14\[0-9\]*" "static const float initialized in class definition"
                                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Added by this:

 https://sourceware.org/bugzilla/show_bug.cgi?id=11702
 https://sourceware.org/ml/gdb-patches/2010-06/msg00677.html
 https://sourceware.org/ml/gdb-patches/2010-06/txt00011.txt

So the new patch would make that highlighted tested above not
test what its test message says it is testing.

So I now think your original patch is better.  Please push
that one instead.

gdb/testsuite/ChangeLog
2016-09-15  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* gdb.cp/m-static.h (gnu_obj_4::somewhere): Use constexpr for C++11.
2016-09-15 23:45:11 +02:00
bfd Automatic date update in version.in 2016-09-15 00:00:19 +00:00
binutils Fix typo in readelf error message. 2016-09-15 10:42:08 +01:00
config Sync top level files with gcc. 2016-02-10 10:54:29 +00:00
cpu Correct fr30 comment 2016-03-03 12:55:30 +10:30
elfcpp Add support for MIPS .rld_map section. 2016-06-20 12:16:26 -07:00
etc Fix compile time warning messages building with gcc v6.1.1 2016-06-13 10:49:26 +01:00
gas gas: run the sparc test dcti-couples-v9 only in ELF targets. 2016-09-15 12:20:54 +02:00
gdb testsuite: Fix C++11 compilation failure for gdb.cp/m-static.exp 2016-09-15 23:45:11 +02:00
gold Handle ARM-specific --target1-abs, --target1-rel and --target2 options 2016-09-02 15:51:59 -07:00
gprof Partially revert previous delta - move limit testing code to first scan over symbol file. 2016-08-30 13:51:43 +01:00
include [arm] Automatically enable CRC instructions on supported ARMv8-A CPUs. 2016-09-07 17:14:54 +01:00
intl Regen intl/configure 2015-08-31 12:53:36 +09:30
ld Fix ld --gc-section segfault with ARMv8-M entry function in absolute section 2016-09-14 16:03:43 +01:00
libdecnumber Remove leading/trailing white spaces in ChangeLog 2015-07-24 04:16:47 -07:00
libiberty Synchronize libiberty sources with FSF GCC mainline version. 2016-08-02 13:26:28 +01:00
opcodes Modify POWER9 support to match final ISA 3.0 documentation. 2016-09-14 22:10:51 -05:00
readline Revert "Sync readline/ to version 7.0 alpha" 2015-07-25 15:57:00 -04:00
sim sim: m68hc11: use standard STATIC_INLINE helper 2016-08-16 06:12:39 -07:00
texinfo
zlib Regenerate configure 2016-05-09 17:24:30 +09:30
.cvsignore
.gitattributes Add a .gitattributes file for use with git-merge-changelog 2014-07-25 18:07:23 -04:00
.gitignore Import changes made to files shared with the FSF GCC project. 2016-01-11 11:06:56 +00:00
COPYING
COPYING.LIB
COPYING.LIBGLOSS
COPYING.NEWLIB
COPYING3
COPYING3.LIB
ChangeLog Enable the configuration of GDB for the NDS32 target. 2016-07-20 09:06:39 +01:00
MAINTAINERS Update description of ownership of files in include/ 2014-11-04 16:14:14 -08:00
Makefile.def Sync top-level Makefile.def with GCC 2016-01-12 08:34:40 -08:00
Makefile.in Add dependencies to configure rule 2016-05-28 22:36:04 +09:30
Makefile.tpl Add dependencies to configure rule 2016-05-28 22:36:04 +09:30
README
README-maintainer-mode
compile Update from upstream Automake 2014-11-16 13:43:48 +01:00
config-ml.in Sync toplevel files with GCC 2015-07-27 07:49:05 -07:00
config.guess Fix typo introduced during the most recent synchronization update. 2016-05-27 14:34:06 +01:00
config.rpath
config.sub Sync config.guess and config.sub with FSF GCC mainline versions 2016-05-23 11:42:17 +01:00
configure Enable the configuration of GDB for the NDS32 target. 2016-07-20 09:06:39 +01:00
configure.ac Enable the configuration of GDB for the NDS32 target. 2016-07-20 09:06:39 +01:00
depcomp Update from upstream Automake 2014-11-16 13:43:48 +01:00
djunpack.bat
install-sh Update from upstream Automake 2014-11-16 13:43:48 +01:00
libtool.m4 Sync top-level btool.m4 with GCC 2016-01-12 08:44:52 -08:00
ltgcc.m4
ltmain.sh
ltoptions.m4
ltsugar.m4
ltversion.m4
lt~obsolete.m4
makefile.vms
missing Update from upstream Automake 2014-11-16 13:43:48 +01:00
mkdep
mkinstalldirs Update from upstream Automake 2014-11-16 13:43:48 +01:00
move-if-change Update `move-if-change' from gnulib 2014-11-16 17:04:02 +01:00
setup.com
src-release.sh fix gdb version parsing in src-release.sh 2016-01-17 10:01:55 +04:00
symlink-tree
ylwrap Update from upstream Automake 2014-11-16 13:43:48 +01:00

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