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* [Bug c++/51489] New: constexpr not working consistently
@ 2011-12-09 23:41 dave at boostpro dot com
2011-12-18 7:07 ` [Bug c++/51489] " jason at gcc dot gnu.org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: dave at boostpro dot com @ 2011-12-09 23:41 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51489
Bug #: 51489
Summary: constexpr not working consistently
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: dave@boostpro.com
I think this is a bug, and the program should compile.
struct array
{
constexpr array() :x(0) {}
constexpr int const* begin() { return &x; }
int x;
};
constexpr array aa;
constexpr auto b = aa.begin();
static_assert(b-b == 0, "compiles just fine");
static_assert(aa.begin()-aa.begin() == 0, "compiler thinks it's not a
constant expression");
^ permalink raw reply [flat|nested] 4+ messages in thread* [Bug c++/51489] constexpr not working consistently 2011-12-09 23:41 [Bug c++/51489] New: constexpr not working consistently dave at boostpro dot com @ 2011-12-18 7:07 ` jason at gcc dot gnu.org 2011-12-19 5:59 ` jason at gcc dot gnu.org 2011-12-19 6:01 ` jason at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: jason at gcc dot gnu.org @ 2011-12-18 7:07 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51489 Jason Merrill <jason at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |ASSIGNED Last reconfirmed| |2011-12-18 CC| |jason at gcc dot gnu.org AssignedTo|unassigned at gcc dot |jason at gcc dot gnu.org |gnu.org | Ever Confirmed|0 |1 --- Comment #1 from Jason Merrill <jason at gcc dot gnu.org> 2011-12-18 06:27:49 UTC --- Specifically, DR 1313 makes this a valid constant-expression. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/51489] constexpr not working consistently 2011-12-09 23:41 [Bug c++/51489] New: constexpr not working consistently dave at boostpro dot com 2011-12-18 7:07 ` [Bug c++/51489] " jason at gcc dot gnu.org @ 2011-12-19 5:59 ` jason at gcc dot gnu.org 2011-12-19 6:01 ` jason at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: jason at gcc dot gnu.org @ 2011-12-19 5:59 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51489 --- Comment #2 from Jason Merrill <jason at gcc dot gnu.org> 2011-12-19 05:57:58 UTC --- Author: jason Date: Mon Dec 19 05:57:52 2011 New Revision: 182470 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=182470 Log: PR c++/51489 * semantics.c (cxx_eval_outermost_constant_expr): Check for conversion from pointer to integer here. (cxx_eval_constant_expression) [NOP_EXPR]: Not here. Added: trunk/gcc/testsuite/g++.dg/cpp0x/constexpr-ptrsub.C Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/semantics.c trunk/gcc/testsuite/ChangeLog ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/51489] constexpr not working consistently 2011-12-09 23:41 [Bug c++/51489] New: constexpr not working consistently dave at boostpro dot com 2011-12-18 7:07 ` [Bug c++/51489] " jason at gcc dot gnu.org 2011-12-19 5:59 ` jason at gcc dot gnu.org @ 2011-12-19 6:01 ` jason at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: jason at gcc dot gnu.org @ 2011-12-19 6:01 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51489 Jason Merrill <jason at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |FIXED Target Milestone|--- |4.7.0 --- Comment #3 from Jason Merrill <jason at gcc dot gnu.org> 2011-12-19 05:58:26 UTC --- Fixed. ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2011-12-19 5:59 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2011-12-09 23:41 [Bug c++/51489] New: constexpr not working consistently dave at boostpro dot com 2011-12-18 7:07 ` [Bug c++/51489] " jason at gcc dot gnu.org 2011-12-19 5:59 ` jason at gcc dot gnu.org 2011-12-19 6:01 ` jason at gcc dot gnu.org
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