[Bug c++/60386] New: [C++11] Crash on a template class containing array initialized in-class
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60386
Bug ID: 60386
Summary: [C++11] Crash on a template class containing array
initialized in-class
Product: gcc
Version: 4.8.2
Status: UNCONFIRMED
Severity: major
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: a.matveyakin at gmail dot com
Using built-in specs.
COLLECT_GCC=/usr/bin/gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/4.8/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 4.8.2-15ubuntu3'
--with-bugurl=file:///usr/share/doc/gcc-4.8/README.Bugs
--enable-languages=c,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr
--program-suffix=-4.8 --enable-shared --enable-linker-build-id
--libexecdir=/usr/lib --without-included-gettext --enable-threads=posix
--with-gxx-include-dir=/usr/include/c++/4.8 --libdir=/usr/lib --enable-nls
--with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug
--enable-libstdcxx-time=yes --enable-gnu-unique-object --disable-libmudflap
--enable-plugin --with-system-zlib --disable-browser-plugin
--enable-java-awt=gtk --enable-gtk-cairo
--with-java-home=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64/jre --enable-java-home
--with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64
--with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.8-amd64
--with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar
--enable-objc-gc --enable-multiarch --disable-werror --with-arch-32=i686
--with-abi=m64 --with-multilib-list=m32,m64,mx32 --with-tune=generic
--enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu
--target=x86_64-linux-gnu
Thread model: posix
gcc version 4.8.2 (Ubuntu 4.8.2-15ubuntu3)
Compiling the code below with “g++ -std=c++11 filename.cpp” causes segmentation
fault in the compiler.
class A
{
};
templatetypename T
class B
{
public:
A v[1] = {};
};
Bint b;
[Bug c++/53926] New: g++ fails to compile valid template code with casting to QVariant and back
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53926
Bug #: 53926
Summary: g++ fails to compile valid template code with casting
to QVariant and back
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: a.matveya...@gmail.com
Trying to compile the following code:
#include QtCore/QSettings
template typename T
void bug (const T default_value)
{
QSettings settings;
settings.value (foo, default_value).value T ();
}
results in compilation failure:
$ gcc -I/usr/include/qt4 -c gcc-bug.cpp
gcc-bug.cpp: In function ‘void bug(const T)’:
gcc-bug.cpp:7:49: error: expected primary-expression before ‘’ token
gcc-bug.cpp:7:52: error: expected primary-expression before ‘)’ token
The error can be reproduced in a small code piece without any includes:
class Variant
{
public:
Variant (int) { }
template typename T
T value () const { return T (); }
};
template typename T
Variant get_variant (const T x)
{
return Variant (x);
}
template typename T
void bug (const T x)
{
get_variant (x).value T ();
}
$ gcc -I/usr/include/qt4 -c gcc-bug.cpp
gcc-bug.cpp: In function ‘void bug(const T)’:
gcc-bug.cpp:19:27: error: expected primary-expression before ‘’ token
gcc-bug.cpp:19:30: error: expected primary-expression before ‘)’ token
Splitting the line
get_variant (x).value T ();
into
Variant tmp = get_variant (x);
tmp.value T ();
eliminates the error.
The error is reproducible in 4.2.4, 4.5.1, 4.6.3 and 4.8.1 prerelease versions.
ICC MSVC compile these examples without errors or warnings.
[Bug c++/53926] g++ fails to compile valid template code with casting to QVariant and back
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53926 Andrey Matveyakin a.matveyakin at gmail dot com changed: What|Removed |Added Status|RESOLVED|UNCONFIRMED Resolution|INVALID | --- Comment #3 from Andrey Matveyakin a.matveyakin at gmail dot com 2012-07-11 11:49:56 UTC --- Thank you. Sorry for my mistake.
