diff options
Diffstat (limited to 'libstdc++-v3/include')
| -rw-r--r-- | libstdc++-v3/include/debug/safe_iterator.tcc | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libstdc++-v3/include/debug/safe_iterator.tcc b/libstdc++-v3/include/debug/safe_iterator.tcc index 4b2baf2..deaa84d 100644 --- a/libstdc++-v3/include/debug/safe_iterator.tcc +++ b/libstdc++-v3/include/debug/safe_iterator.tcc @@ -86,6 +86,9 @@ namespace __gnu_debug _Safe_iterator<_Iterator, _Sequence, _Category>:: _M_can_advance(difference_type __n, bool __strict) const { + if (this->_M_value_initialized() && __n == 0) + return true; + if (this->_M_singular()) return false; |