@node _doprnt, stdio
@subheading Syntax

@example
#include <stdio.h>

int _doprnt(const char *format, void *params, FILE *file);
@end example

@subheading Description

This is an internal function that is used by all the @code{printf} style
functions, which simply pass their format, arguments, and stream to this
function. 

@xref{printf}, for a discussion of the allowed formats and arguments. 

@subheading Return Value

The number of characters generated is returned.

@subheading Portability

@portability !ansi, !posix

@subheading Example

@example
int args[] = @{ 1, 2, 3, 66 @};
_doprnt("%d %d %d %c\n", args, stdout);
@end example