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[/] [or1k/] [branches/] [newlib/] [newlib/] [newlib/] [libc/] [stdio/] [fileno.c] - Rev 39
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/* FUNCTION <<fileno>>---return file descriptor associated with stream INDEX fileno ANSI_SYNOPSIS #include <stdio.h> int fileno(FILE *<[fp]>); TRAD_SYNOPSIS #include <stdio.h> int fileno(<[fp]>) FILE *<[fp]>; DESCRIPTION You can use <<fileno>> to return the file descriptor identified by <[fp]>. RETURNS <<fileno>> returns a non-negative integer when successful. If <[fp]> is not an open stream, <<fileno>> returns -1. PORTABILITY <<fileno>> is not part of ANSI C. POSIX requires <<fileno>>. Supporting OS subroutines required: none. */ #include <stdio.h> #include "local.h" int _DEFUN (fileno, (f), FILE * f) { CHECK_INIT (f); return __sfileno (f); }
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