https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87384
Bug ID: 87384
Summary: Likely syntax error not reported as such
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: jengelh at inai dot de
Target Milestone: ---
$ cat x.cpp
void (*f)(const char *, int &&...);
void g(const char *, int &&a, int &&b) {}
int main() { f = g; return 0; }
OBSERVED:
$ g++-8 -c x.cpp
x.cpp: In function ‘int main()’:
x.cpp:3:18: error: invalid conversion from ‘void (*)(const char*, int&&,
int&&)’ to ‘void (*)(const char*, int&&, ...)’ [-fpermissive]
int main() { f = g; return 0; }
EXPECTED:
That "int &&..." be reported as a syntax error of some kind. An argument pack
is normally only viable with a template, isn't it.
Using built-in specs.
COLLECT_GCC=g++-8
OFFLOAD_TARGET_NAMES=hsa:nvptx-none
Target: x86_64-suse-linux
Configured with: ../configure --prefix=/usr --infodir=/usr/share/info
--mandir=/usr/share/man --libdir=/usr/lib64 --libexecdir=/usr/lib64
--enable-languages=c,c++,objc,fortran,obj-c++,ada,go
--enable-offload-targets=hsa,nvptx-none=/usr/nvptx-none, --without-cuda-driver
--enable-checking=release --disable-werror
--with-gxx-include-dir=/usr/include/c++/8 --enable-ssp --disable-libssp
--disable-libvtv --disable-cet --disable-libcc1 --enable-plugin
--with-bugurl=http://bugs.opensuse.org/ --with-pkgversion='SUSE Linux'
--with-slibdir=/lib64 --with-system-zlib --enable-__cxa_atexit
--enable-libstdcxx-allocator=new --disable-libstdcxx-pch
--enable-version-specific-runtime-libs --with-gcc-major-version-only
--enable-linker-build-id --enable-linux-futex --enable-gnu-indirect-function
--program-suffix=-8 --without-system-libunwind --enable-multilib
--with-arch-32=x86-64 --with-tune=generic --build=x86_64-suse-linux
--host=x86_64-suse-linux
Thread model: posix
gcc version 8.2.1 20180831 [gcc-8-branch revision 264010] (SUSE Linux)
COLLECT_GCC_OPTIONS='-c' '-v' '-shared-libgcc' '-mtune=generic' '-march=x86-64'
/usr/lib64/gcc/x86_64-suse-linux/8/cc1plus -quiet -v -D_GNU_SOURCE x.cpp
-quiet -dumpbase x.cpp -mtune=generic -march=x86-64 -auxbase x -version -o
/tmp/ccboFSGw.s
GNU C++14 (SUSE Linux) version 8.2.1 20180831 [gcc-8-branch revision 264010]
(x86_64-suse-linux)
compiled by GNU C version 8.2.1 20180831 [gcc-8-branch revision
264010], GMP version 6.1.2, MPFR version 4.0.1-p6, MPC version 1.1.0, isl
version isl-0.20-GMP
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
#include "..." search starts here:
#include <...> search starts here:
/usr/include/c++/8
/usr/include/c++/8/x86_64-suse-linux
/usr/include/c++/8/backward
/usr/lib64/gcc/x86_64-suse-linux/8/include
/usr/local/include
/usr/lib64/gcc/x86_64-suse-linux/8/include-fixed
/usr/lib64/gcc/x86_64-suse-linux/8/../../../../x86_64-suse-linux/include
/usr/include
End of search list.
GNU C++14 (SUSE Linux) version 8.2.1 20180831 [gcc-8-branch revision 264010]
(x86_64-suse-linux)
compiled by GNU C version 8.2.1 20180831 [gcc-8-branch revision
264010], GMP version 6.1.2, MPFR version 4.0.1-p6, MPC version 1.1.0, isl
version isl-0.20-GMP
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 9a7181e015deb6ba65f2fa22664edb4d
