http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51459
Bug #: 51459
Summary: [4.6 Regression] 'double free or corruption' involving
std::function, std::vector and lambdas
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: [email protected]
ReportedBy: [email protected]
Tested with "gcc version 4.7.0 20111112" on 64-bit Linux.
~~~~~~~~~~~~~~~~~
#include <vector>
#include <functional>
template <typename F>
std::function<void()> animate(F f) { return [=]{ f(); }; }
int main()
{
std::vector<double> pv {0, 0};
pv.push_back(0);
std::function<void()> linear1 = []{};
std::vector<std::function<void()>> av {animate(linear1), animate(linear1)};
av[0]();
return 0;
}
~~~~~~~~~~~~~~~~~
Compiling and running this (`g++-4.7 -std=c++11 x.cpp`) results in:
*** glibc detected *** ./a.out: double free or corruption (fasttop):
0x0000000001c7b1c0 ***
======= Backtrace: =========
/lib/libc.so.6(+0x73466)[0x7fafc7a78466]
/lib/libc.so.6(cfree+0x6c)[0x7fafc7a7c33c]
....
~~~~~~~~~~~~~~~~~
g++-4.7 -v:
Using built-in specs.
COLLECT_GCC=g++-4.7
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-unknown-linux-gnu/4.7.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with:
/tmp/packerbuild-0/gcc-snapshot/gcc-snapshot/src/gcc-4.7-20111112/configure
--prefix=/usr --libdir=/usr/lib --libexecdir=/usr/lib --mandir=/usr/share/man
--infodir=/usr/share/info --datadir=/usr/share/gcc-4.7
--with-bugurl='http://aur.archlinux.org/packages.php?ID=16045'
--enable-languages=c,c++,lto --enable-shared --enable-threads=posix
--with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions
--enable-clocale=gnu --enable-gnu-unique-object --enable-linker-build-id
--with-ppl --enable-cloog-backend=isl --enable-lto --enable-gold
--enable-ld=default --enable-plugin --with-plugin-ld=ld.gold
--with-linker-hash-style=gnu --disable-multilib --disable-libssp
--disable-libstdcxx-pch --enable-checking=release --disable-werror
--program-suffix=-4.7 --enable-version-specific-runtime-libs
--disable-bootstrap
Thread model: posix
gcc version 4.7.0 20111112 (experimental) (GCC)
