https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97458
Bug ID: 97458
Summary: C++ parsing fails when calling specialized template
method inside lambda
Product: gcc
Version: 8.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: gabriel_machado at live dot com
Target Milestone: ---
Created attachment 49385
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49385&action=edit
Minimal example
Minimal example:
template<class S>
struct A {
template<class T> void fn();
struct B { void init(A *p); };
};
template<class S>
void A<S>::B::init(A *p) {
[p](){ p->fn<int>(); }; // BUG
// [p](){ p->A::fn<int>(); }; // OK
// [=](){ p->fn<int>(); }; // OK
}
int main(){}
Command: g++ gcc-bug.cpp
Output:
gcc-bug.cpp: In lambda function:
gcc-bug.cpp:13:18: error: expected primary-expression before ‘int’
[p](){ p->fn<int>(); }; // BUG
^~~
gcc-bug.cpp:13:18: error: expected ‘;’ before ‘int’
[p](){ p->fn<int>(); }; // BUG
^~~
;
Command: g++ -v
Output:
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/8/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none
OFFLOAD_TARGET_DEFAULT=1
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 8.3.0-6'
--with-bugurl=file:///usr/share/doc/gcc-8/README.Bugs
--enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++ --prefix=/usr
--with-gcc-major-version-only --program-suffix=-8
--program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id
--libexecdir=/usr/lib --without-included-gettext --enable-threads=posix
--libdir=/usr/lib --enable-nls --enable-bootstrap --enable-clocale=gnu
--enable-libstdcxx-debug --enable-libstdcxx-time=yes
--with-default-libstdcxx-abi=new --enable-gnu-unique-object
--disable-vtable-verify --enable-libmpx --enable-plugin --enable-default-pie
--with-system-zlib --with-target-system-zlib --enable-objc-gc=auto
--enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64
--with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic
--enable-offload-targets=nvptx-none --without-cuda-driver
--enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu
--target=x86_64-linux-gnu
Thread model: posix
gcc version 8.3.0 (Debian 8.3.0-6)
System: Debian GNU/Linux 10 under WSL
