_M_initialize_map
_M_initialize_map(0);
_M_initialize_map(__n);
{ _M_initialize_map(__num_elements); }
void _M_initialize_map(size_t);
_M_initialize_map(__num_elements);
void _M_initialize_map(size_t);
using _Base::_M_initialize_map;
_M_initialize_map(__n);