QP_vfprintf() #include <quintus/quintus.h>
int QP_vfprintf(stream, format, ap)
QP_stream *stream;
char *format;
va_list ap;
Places output onto the Prolog output stream stream.
QP_vfprintf() is also
similar to the library function vfprintf(3V), however the return
values differ and stream is a Prolog stream rather than a stdio
stream. It also resembles QP_fprintf() except that rather
than being called with a variable number of arguments, it is called with
an argument list as defined by varargs(3).
QP_SUCCESS
QP_ERROR
QP_printf(), QP_fprintf()
fli-ios