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[Bug c++/52725] [4.7/4.8 Regression] error: "capture of non-variable" for new-expression incorrectly parsed as lambda-expression
- From: "redi at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 29 May 2012 11:55:06 +0000
- Subject: [Bug c++/52725] [4.7/4.8 Regression] error: "capture of non-variable" for new-expression incorrectly parsed as lambda-expression
- Auto-submitted: auto-generated
- References: <bug-52725-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52725
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |rejects-valid
Status|UNCONFIRMED |NEW
Last reconfirmed| |2012-05-29
Known to work| |4.1.2, 4.4.3, 4.6.3
Summary|error: "capture of |[4.7/4.8 Regression] error:
|non-variable" for |"capture of non-variable"
|new-expression incorrectly |for new-expression
|parsed as lambda-expression |incorrectly parsed as
| |lambda-expression
Ever Confirmed|0 |1
--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-05-29 11:55:06 UTC ---
Anything to do with the cuda compiler is irrelevant here, this report is for a
GCC bug not for other programs, even if they generate code that triggers the
bug.
Anyway, I'm confirming this, here's a reduced testcase that produces a slightly
different eror, due to using a global instead of a data member:
struct A { };
extern int n;
void f()
{
A** p = new (A*[n]);
}
Accepted by 4.6 and earlier, rejected by 4.7 and later
$ g++-4.7 -c t.cc
t.cc: In function 'void f()':
t.cc:7:21: warning: capture of variable 'n' with non-automatic storage duration
[enabled by default]
t.cc:3:5: note: 'int n' declared here
N.B. 4.5 says
t.cc: In function âvoid f()â:
t.cc:7:19: warning: lambda expressions only available with -std=c++0x or
-std=gnu++0x
But that was fixed for 4.6