[Bug c++/38064] [c++0x] operator== doesn't work for enum classes
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38064 Jackie Rosen jackie.rosen at hushmail dot com changed: What|Removed |Added CC||jackie.rosen at hushmail dot com --- Comment #17 from Jackie Rosen jackie.rosen at hushmail dot com --- *** Bug 260998 has been marked as a duplicate of this bug. *** Seen from the domain http://volichat.com Marked for reference. Resolved as fixed @bugzilla.
[Bug c++/38064] [c++0x] operator== doesn't work for enum classes
--- Comment #14 from jason at gcc dot gnu dot org 2010-05-04 19:01 --- Subject: Bug 38064 Author: jason Date: Tue May 4 19:01:13 2010 New Revision: 159042 URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=159042 Log: PR c++/38064 * typeck.c (cp_build_binary_op): Allow enums for as well. Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/typeck.c trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/g++.dg/cpp0x/enum3.C -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38064
[Bug c++/38064] [c++0x] operator== doesn't work for enum classes
--- Comment #15 from jason at gcc dot gnu dot org 2010-05-04 19:03 --- Subject: Bug 38064 Author: jason Date: Tue May 4 19:03:00 2010 New Revision: 159043 URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=159043 Log: PR c++/38064 * typeck.c (cp_build_binary_op): Allow enums for as well. Modified: branches/gcc-4_5-branch/gcc/cp/ChangeLog branches/gcc-4_5-branch/gcc/cp/typeck.c branches/gcc-4_5-branch/gcc/testsuite/ChangeLog branches/gcc-4_5-branch/gcc/testsuite/g++.dg/cpp0x/enum3.C -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38064
[Bug c++/38064] [c++0x] operator== doesn't work for enum classes
--- Comment #16 from jason at gcc dot gnu dot org 2010-05-04 19:04 --- Other comparisons fixed for 4.5.1. -- jason at gcc dot gnu dot org changed: What|Removed |Added Status|REOPENED|RESOLVED Resolution||FIXED Target Milestone|4.4.1 |4.5.1 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38064
[Bug c++/38064] [c++0x] operator== doesn't work for enum classes
--- Comment #11 from redi at gcc dot gnu dot org 2010-04-26 11:23 ---
This is fixed for equality operators but not relational operators
enum class E { Foo, Bar };
bool b2 = E::Foo E::Bar;
--
redi at gcc dot gnu dot org changed:
What|Removed |Added
Status|RESOLVED|REOPENED
Resolution|FIXED |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38064
[Bug c++/38064] [c++0x] operator== doesn't work for enum classes
--- Comment #12 from pinskia at gcc dot gnu dot org 2010-04-26 17:50
---
(In reply to comment #11)
This is fixed for equality operators but not relational operators
enum class E { Foo, Bar };
bool b2 = E::Foo E::Bar;
Is that even allowed for normal enums?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38064
[Bug c++/38064] [c++0x] operator== doesn't work for enum classes
--- Comment #13 from redi at gcc dot gnu dot org 2010-04-26 23:07 --- (In reply to comment #12) Is that even allowed for normal enums? yes, unscoped enums will be promoted to int -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38064
[Bug c++/38064] [c++0x] operator== doesn't work for enum classes
-- pinskia at gcc dot gnu dot org changed: What|Removed |Added Target Milestone|--- |4.4.1 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38064
[Bug c++/38064] [c++0x] operator== doesn't work for enum classes
--- Comment #10 from pinskia at gcc dot gnu dot org 2009-08-10 21:37 --- *** Bug 41030 has been marked as a duplicate of this bug. *** -- pinskia at gcc dot gnu dot org changed: What|Removed |Added CC||msclrhd at gmail dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38064
[Bug c++/38064] [c++0x] operator== doesn't work for enum classes
--- Comment #5 from paolo dot carlini at oracle dot com 2009-05-25 16:11 --- CC-ing Jason... -- paolo dot carlini at oracle dot com changed: What|Removed |Added CC||jason at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38064
[Bug c++/38064] [c++0x] operator== doesn't work for enum classes
-- jason at gcc dot gnu dot org changed: What|Removed |Added AssignedTo|unassigned at gcc dot gnu |jason at gcc dot gnu dot org |dot org | Status|NEW |ASSIGNED Last reconfirmed|2009-05-25 15:15:07 |2009-05-25 16:45:17 date|| http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38064
[Bug c++/38064] [c++0x] operator== doesn't work for enum classes
--- Comment #6 from ian at airs dot com 2009-05-25 18:32 --- With unscoped enums the similar code works because cp_build_binary_op applies the default integral promotions to the enums, and winds up comparing two int values. The promotions are not applied to scoped enums because default_conversion checks INTEGRAL_OR_UNSCOPED_ENUMERATION_TYPE_P. I would guess that this would work if several checks in cp_build_binary_op also checked for ENUMERAL_TYPE in cases where they currently check for INTEGER_TYPE. But I haven't tried to read the standard to understand where the right fix is. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38064
[Bug c++/38064] [c++0x] operator== doesn't work for enum classes
--- Comment #7 from jason at gcc dot gnu dot org 2009-05-25 23:01 --- Subject: Bug 38064 Author: jason Date: Mon May 25 23:01:02 2009 New Revision: 147854 URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=147854 Log: PR c++/38064 * typeck.c (cp_build_binary_op): Allow ENUMERAL_TYPE in arithmetic comparisons. (cp_common_type): Handle scoped enums. * call.c (promoted_arithmetic_type_p): Don't use INTEGRAL_TYPE_P. (add_builtin_candidate, add_builtin_candidates): Likewise. (convert_like_real): Likewise. * class.c (check_bitfield_decl): Likewise. * decl.c (check_static_variable_definition): Likewise. (compute_array_index_type): Likewise. * decl2.c (grokbitfield): Likewise. * init.c (build_new_1): Likewise. * pt.c (convert_nontype_argument): Likewise. (current_instantiation): Likewise. * tree.c (pod_type_p): Likewise. * typeck.c (build_static_cast_1): Likewise. (build_reinterpret_cast_1): Likewise. Added: trunk/gcc/testsuite/g++.dg/cpp0x/enum3.C Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/call.c trunk/gcc/cp/class.c trunk/gcc/cp/decl.c trunk/gcc/cp/decl2.c trunk/gcc/cp/init.c trunk/gcc/cp/pt.c trunk/gcc/cp/tree.c trunk/gcc/cp/typeck.c trunk/gcc/testsuite/ChangeLog -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38064
[Bug c++/38064] [c++0x] operator== doesn't work for enum classes
--- Comment #8 from jason at gcc dot gnu dot org 2009-05-25 23:07 --- Subject: Bug 38064 Author: jason Date: Mon May 25 23:07:05 2009 New Revision: 147855 URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=147855 Log: PR c++/38064 * typeck.c (cp_build_binary_op): Allow ENUMERAL_TYPE in arithmetic comparisons. (cp_common_type): Handle scoped enums. Added: branches/gcc-4_4-branch/gcc/testsuite/g++.dg/cpp0x/enum3.C - copied unchanged from r147854, trunk/gcc/testsuite/g++.dg/cpp0x/enum3.C Modified: branches/gcc-4_4-branch/gcc/cp/ChangeLog branches/gcc-4_4-branch/gcc/cp/typeck.c branches/gcc-4_4-branch/gcc/testsuite/ChangeLog -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38064
[Bug c++/38064] [c++0x] operator== doesn't work for enum classes
--- Comment #9 from jason at gcc dot gnu dot org 2009-05-25 23:12 --- Fixed for 4.4.1. -- jason at gcc dot gnu dot org changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution||FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38064
[Bug c++/38064] [c++0x] operator== doesn't work for enum classes
--- Comment #4 from paolo dot carlini at oracle dot com 2009-05-18 22:12 --- *** Bug 40193 has been marked as a duplicate of this bug. *** -- paolo dot carlini at oracle dot com changed: What|Removed |Added CC||frabar666 at gmail dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38064
[Bug c++/38064] [c++0x] operator== doesn't work for enum classes
--- Comment #3 from piotr dot wyderski at gmail dot com 2009-01-26 10:48 --- The bug is definitely confirmed and it still happens on GCC-4.4.0 trunk (revision 143673). -- piotr dot wyderski at gmail dot com changed: What|Removed |Added CC||piotr dot wyderski at gmail ||dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38064
[Bug c++/38064] [c++0x] operator== doesn't work for enum classes
--- Comment #2 from rbuergel at web dot de 2008-11-09 04:22 ---
ok, even for the case i misunderstood the proposal: there are still some
problems with it, making it unuseable.
enum class E { elem };
inline bool operator== (E c1, E c2)
{
return (int) c1 == (int) c2;
}
int main()
{
E::elem == E::elem; //works now
static_assert(E::elem == E::elem, ); //fails
return 1;
}
tc2.cpp: In function 'int main()':
tc2.cpp:10: error: calls to overloaded operators cannot appear in a
constant-expression
... which leads to the conclusion, that strongly-typed enums can't be used in
constant-expression. That's definitely not intended by the proposal.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38064
[Bug c++/38064] [c++0x] operator== doesn't work for enum classes
--- Comment #1 from rbuergel at web dot de 2008-11-09 04:11 ---
extended testcase, this fails for other operators, too
enum class E { elem };
int main()
{
E::elem == E::elem;
E::elem != E::elem;
E::elem E::elem;
E::elem = E::elem;
E::elem E::elem;
E::elem = E::elem;
return 1;
}
Or am i missing something from the proposal? Maybe i have to define every
operator i want to use for every enum?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38064
