I/O Functions
This chapter comprises functions to manage files or other input/output streams. Among these functions are subroutines to generate or scan strings according to specifications from a format string.
The underlying facilities for input and output depend on the host system, but these functions provide a uniform interface.
The corresponding declarations are in `stdio.h’.
The reentrant versions of these functions use macros
_stdin_r(reent) _stdout_r(reent) _stderr_r(reent)
instead of the globals stdin, stdout, and stderr. The argument <[reent]> is a pointer to a reentrancy structure.
Authoritative source: BUSMASTER DITA help source stdio.dita, compiled into BUSMASTER.CHM with the application.