add ZeroQueryDict::iterator::operator-- , otherwise gcc 8.x will complain like: https://fars.ee/DAiY
In file included from ../../engine/engine.cc:30:
In file included from /build/fcitx5-mozc-git/src/mozc/src/engine/engine.h:33:
In file included from /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/8.1.0/../../../../include/c++/8.1.0/memory:62:
In file included from /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/8.1.0/../../../../include/c++/8.1.0/bits/stl_algobase.h:66:
/usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/8.1.0/../../../../include/c++/8.1.0/bits/stl_iterator_base_funcs.h:183:2: error: cannot decrement value of type 'mozc::ZeroQueryDict::iterator'
--__i;
^ ~~~
/usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/8.1.0/../../../../include/c++/8.1.0/bits/stl_iterator_base_funcs.h:206:12: note: in instantiation of function template specialization 'std::__advance<mozc::ZeroQueryDict::iterator, long>' requested here
std::__advance(__i, __d, std::__iterator_category(__i));
^
/usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/8.1.0/../../../../include/c++/8.1.0/bits/stl_algo.h:2137:9: note: in instantiation of function template specialization 'std::advance<mozc::ZeroQueryDict::iterator, long>' requested here
std::advance(__middle, __half);
^
/usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/8.1.0/../../../../include/c++/8.1.0/bits/stl_algo.h:2190:19: note: in instantiation of function template specialization 'std::__equal_range<mozc::ZeroQueryDict::iterator, unsigned long, __gnu_cxx::__ops::_Iter_less_val, __gnu_cxx::__ops::_Val_less_iter>' requested here
return std::__equal_range(__first, __last, __val,
^
/build/fcitx5-mozc-git/src/mozc/src/prediction/zero_query_dict.h:213:17: note: in instantiation of function template specialization 'std::equal_range<mozc::ZeroQueryDict::iterator, unsigned long>' requested here
return std::equal_range(begin(), end(), iter.index());
^
1 error generated.
add
ZeroQueryDict::iterator::operator--
, otherwise gcc 8.x will complain like: https://fars.ee/DAiY