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From: "meng at g dot clemson.edu" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/56772] New: placement new operator does not work inside function template. Date: Thu, 28 Mar 2013 20:59:00 -0000 [thread overview] Message-ID: <bug-56772-4@http.gcc.gnu.org/bugzilla/> (raw) http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56772 Bug #: 56772 Summary: placement new operator does not work inside function template. Classification: Unclassified Product: gcc Version: 4.7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassigned@gcc.gnu.org ReportedBy: meng@g.clemson.edu g++-4.7.0 emits an error for the following piece of code. ------------------------- BEGIN ----------------------------- #include <cstddef> #include <new> template <typename T = size_t> void f () { size_t coord [2][2]; new (&coord) size_t [2][2] { {0,0}, {0,0}, }; } int main () { f<>(); } ------------------------- END ----------------------------- The error message was error: parenthesized initializer in array new [-fpermissive] sorry, unimplemented: cannot initialize multi-dimensional array with initializer I observed the same behavior on 4.8.0. The problem only occurs inside function template according to my test. If I made f an ordinary function, the code was accepted. Clang 3.2 and Visual Studio 2012 all accept the code. These facts led me to assume this is a bug in g++. Below is my g++ version. Reading specs from /home/meng/gcc/4.7.0/lib/gcc/x86_64-unknown-linux-gnu/4.7.0/specs COLLECT_GCC=/home/meng/gcc/4.7.0/bin/c++ COLLECT_LTO_WRAPPER=/home/meng/gcc/4.7.0/libexec/gcc/x86_64-unknown-linux-gnu/4.7.0/lto-wrapper Target: x86_64-unknown-linux-gnu Configured with: ./configure --prefix=/home/meng/gcc/4.7.0 --enable-languages=c,c++ -disable-multilib Thread model: posix gcc version 4.7.0 (GCC)
next reply other threads:[~2013-03-28 20:59 UTC|newest] Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top 2013-03-28 20:59 meng at g dot clemson.edu [this message] 2013-03-28 23:43 ` [Bug c++/56772] placement new operator does not work inside function template for array types paolo.carlini at oracle dot com 2013-03-29 0:45 ` meng at g dot clemson.edu 2013-04-01 20:32 ` jason at gcc dot gnu.org 2013-04-01 21:22 ` jason at gcc dot gnu.org
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