https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64603
--- Comment #2 from janus at gcc dot gnu.org ---
Further reduced test case:
template <int i> constexpr int find_longest_name()
{
return sizeof("Main") - 1;
}
template <int i, int l = find_longest_name<i>()> void create_all_loggers()
{}
int main()
{
create_all_loggers<1>();
}
$ g++-5.0 logging.cc -std=c++11
logging.cc: In function ‘int main()’:
logging.cc:11:25: error: no matching function for call to
‘create_all_loggers()’
create_all_loggers<1>();
^
logging.cc:6:55: note: candidate: template<int i, int l> void
create_all_loggers()
template <int i, int l = find_longest_name<i>()> void create_all_loggers()
^
logging.cc:6:55: note: template argument deduction/substitution failed:
logging.cc:6: confused by earlier errors, bailing out
