pSOSystem System Calls - Read

setbuf pREPC+ System Calls
setbuf Changes a stream’s buffer.
#include
#include
void setbuf(
FILE *stream, /* stream pointer */
char *buf /* I/O buffer */
)
Description
Arguments
Return Value
The setbuf() function causes a new buffer to be used for a specified stream
(instead of the buffer that is currently assigned).
The buffer is assumed to have a size equal to lc_bufsize, which is defined in the
pREPC+ Configuration Table.
The setbuf() function must be called after the specified stream has been opened
but prior to performing any read or write operation on the stream. If setbuf() is
called after a read or write operation, it has no effect.
You must use the setvbuf() call if you want additional control over buffering
options.
stream Points to an open pREPC+ stream.
buf Points to the new buffer.
If buf is a null pointer, all input and output is unbuffered.
This effectively eliminates buffering. Otherwise, the stream
is set to fully buffered mode.
This function does not return a value.
3-132 pSOSystem System Calls