71 #define	cantwrite(fp) \  argument
72 	((((fp)->_flags & __SWR) == 0 || (fp)->_bf._base == NULL) && \
73 	 __swsetup(fp))
79 #define	HASUB(fp) (_UB(fp)._base != NULL)  argument
80 #define	FREEUB(fp) { \  argument
81 	if (_UB(fp)._base != (fp)->_ubuf) \
82 		free(_UB(fp)._base); \
83 	_UB(fp)._base = NULL; \
89 #define	HASLB(fp) ((fp)->_lb._base != NULL)  argument
90 #define	FREELB(fp) { \  argument
91 	free((char *)(fp)->_lb._base); \
92 	(fp)->_lb._base = NULL; \
95 #define FLOCKFILE(fp)   do { if (__isthreaded) flockfile(fp); } while (0)  argument
96 #define FUNLOCKFILE(fp) do { if (__isthreaded) funlockfile(fp); } while (0)  argument