HP C/iX Library Reference Manual (30026-90004)

378 AppendixB
Restrictions and Special Considerations
Mixed I/O from the C System and Other Systems
to an output routine is made, you must call the fflush function immediately after the call
or change the buffering scheme for the stdout and stderr streams to completely
unbuffered or line buffered by calling the C library function setvbuf. Refer to the
description of the setvbuf function in chapter 5 for details.