empty 84 clib/csocket.cpp if (host_name.empty()) empty 106 clib/csocket.cpp if (host_name.empty()) empty 130 clib/csocket.cpp if (sbuf.empty()) empty 57 clib/wstring.cpp if (o_string.empty()) empty 68 clib/wstring.cpp if (o_string.empty()) empty 93 include/wstring.h bool empty(void);