Note:
If a pointer points to the
‘end’ of an area, it means that it points to the character after the area.
char* streambuf::pbase
()const
Method
Returns a pointer to the
start of the put area.
char* streambuf::epptr
()const
Method
Returns a pointer to the
end of the put area.
char* streambuf::pptr
()const
Method
If pptr()
< epptr (),
the pptr()
returns a pointer to the current put position. (In that case, the next
write will overwrite *pptr(),
and increment pptr().)
Otherwise, there is no put position available (and the next character written
will cause streambuf::overflow
to be called).
void streambuf::pbump
(int N)
Method
Add N
to the current put pointer. No error checking is done.
void
streambuf::setp (char*
P, char* E)
Method
Sets the start of the put
area to P,
the end of the put area to E,
and the current put pointer to P
(also).
char* streambuf::eback
()const
Method
Returns a pointer to the
start of the get area.
char* streambuf::egptr
()const
Method
Returns a pointer to the
end of the get area.
char* streambuf::gptr
()const
Method
If gptr()
< egptr (),
then gptr()
returns a pointer to the current get position. (In that case the next read
will read *gptr(),
and possibly increment gptr().)
Otherwise, there is no read position available (and the next read will
cause streambuf::underflow
to be called).
void streambuf:gbump
(int N)
Method
Add N
to the current get pointer. No error checking is done.
void streambuf::setg
(char* B,
char* P, char* E)
Method
Sets the start of the get
area to B,
the end of the get area to E,
and the current put pointer to P.