https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62276
Bug ID: 62276
Summary: ICE when non-variadic template template parameter is
default argument of variadic template template
parameter
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: juchem at gmail dot com
Created attachment 33399
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33399&action=edit
preprocessed source
The code below will result in an internal compiler error on gcc 4.9.0, 4.8.1
and 4.7.3. Tested in Debian sid (aug/2014), http://gcc.godbolt.org/ and
http://ideone.com.
template <typename T> using bar = T;
template <template <typename...> class F = bar>
void foo() {}
int main() { foo(); }
output:
$ g++-4.9 -std=c++11 ice.cpp
ice.cpp: In instantiation of ‘void foo() [with F = bar]’:
ice.cpp:6:18: required from here
ice.cpp:4:6: internal compiler error: in write_name, at cp/mangle.c:800
void foo() {}
^
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.9/README.Bugs> for instructions.
Preprocessed source stored into /tmp/ccKK6fS1.out file, please attach this to
your bugreport.
