/* Binary mode I/O.
- Copyright (C) 2001, 2003, 2005, 2008 Free Software Foundation, Inc.
+ Copyright (C) 2001, 2003, 2005, 2008-2011 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#define _BINARY_H
/* For systems that distinguish between text and binary I/O.
- O_BINARY is usually declared in <fcntl.h>. */
+ O_BINARY is guaranteed by the gnulib <fcntl.h>. */
#include <fcntl.h>
/* The MSVC7 <stdio.h> doesn't like to be included after '#define fileno ...',
so we include it here first. */
#include <stdio.h>
-#if !defined O_BINARY && defined _O_BINARY
- /* For MSC-compatible compilers. */
-# define O_BINARY _O_BINARY
-# define O_TEXT _O_TEXT
-#endif
-#ifdef __BEOS__
- /* BeOS 5 has O_BINARY and O_TEXT, but they have no effect. */
-# undef O_BINARY
-# undef O_TEXT
-#endif
+/* SET_BINARY (fd);
+ changes the file descriptor fd to perform binary I/O. */
#if O_BINARY
# if defined __EMX__ || defined __DJGPP__ || defined __CYGWIN__
# include <io.h> /* declares setmode() */
# endif
# ifdef __DJGPP__
# include <unistd.h> /* declares isatty() */
-# /* Avoid putting stdin/stdout in binary mode if it is connected to the
-# console, because that would make it impossible for the user to
-# interrupt the program through Ctrl-C or Ctrl-Break. */
-# define SET_BINARY(fd) (!isatty (fd) ? (setmode (fd, O_BINARY), 0) : 0)
+ /* Avoid putting stdin/stdout in binary mode if it is connected to
+ the console, because that would make it impossible for the user
+ to interrupt the program through Ctrl-C or Ctrl-Break. */
+# define SET_BINARY(fd) ((void) (!isatty (fd) ? (setmode (fd, O_BINARY), 0) : 0))
# else
-# define SET_BINARY(fd) setmode (fd, O_BINARY)
+# define SET_BINARY(fd) ((void) setmode (fd, O_BINARY))
# endif
#else
/* On reasonable systems, binary I/O is the default. */
-# undef O_BINARY
-# define O_BINARY 0
-# define SET_BINARY(fd) /* nothing */
+# define SET_BINARY(fd) /* do nothing */ ((void) 0)
#endif
#endif /* _BINARY_H */