/* Word-wrapping and line-truncating streams.
- Copyright (C) 1997 Free Software Foundation, Inc.
+ Copyright (C) 1997, 2006-2014 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Written by Miles Bader <miles@gnu.ai.mit.edu>.
- This program is free software; you can redistribute it and/or modify
+ 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
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
- You should have received a copy of the GNU General Public License along
- with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
-/* This package emulates glibc `line_wrap_stream' semantics for systems that
+/* This package emulates glibc 'line_wrap_stream' semantics for systems that
don't have that. If the system does have it, it is just a wrapper for
that. This header file is only used internally while compiling argp, and
shouldn't be installed. */
#ifndef _ARGP_FMTSTREAM_H
#define _ARGP_FMTSTREAM_H
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
#include <stdio.h>
#include <string.h>
#include <unistd.h>
-#ifndef __attribute__
-/* This feature is available in gcc versions 2.5 and later. */
-# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
-# define __attribute__(Spec) /* empty */
-# endif
-/* The __-protected variants of `format' and `printf' attributes
- are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */
-# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7) || __STRICT_ANSI__
-# define __format__ format
-# define __printf__ printf
-# endif
+/* The __attribute__ feature is available in gcc versions 2.5 and later.
+ The __-protected variants of the attributes 'format' and 'printf' are
+ accepted by gcc versions 2.6.4 (effectively 2.7) and later.
+ We enable _GL_ATTRIBUTE_FORMAT only if these are supported too, because
+ gnulib and libintl do '#define printf __printf__' when they override
+ the 'printf' function. */
+#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
+# define _GL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec))
+#else
+# define _GL_ATTRIBUTE_FORMAT(spec) /* empty */
#endif
#if (_LIBC - 0 && !defined (USE_IN_LIBIO)) \
#else /* !ARGP_FMTSTREAM_USE_LINEWRAP */
/* Guess we have to define our own version. */
-
-#ifndef __const
-#define __const const
-#endif
\f
struct argp_fmtstream
{
- FILE *stream; /* The stream we're outputting to. */
+ FILE *stream; /* The stream we're outputting to. */
- size_t lmargin, rmargin; /* Left and right margins. */
- ssize_t wmargin; /* Margin to wrap to, or -1 to truncate. */
+ size_t lmargin, rmargin; /* Left and right margins. */
+ ssize_t wmargin; /* Margin to wrap to, or -1 to truncate. */
/* Point in buffer to which we've processed for wrapping, but not output. */
size_t point_offs;
/* Output column at POINT_OFFS, or -1 meaning 0 but don't add lmargin. */
ssize_t point_col;
- char *buf; /* Output buffer. */
- char *p; /* Current end of text in BUF. */
- char *end; /* Absolute end of BUF. */
+ char *buf; /* Output buffer. */
+ char *p; /* Current end of text in BUF. */
+ char *end; /* Absolute end of BUF. */
};
typedef struct argp_fmtstream *argp_fmtstream_t;
Otherwise, chars beyond RMARGIN are simply dropped until a newline.
Returns NULL if there was an error. */
extern argp_fmtstream_t __argp_make_fmtstream (FILE *__stream,
- size_t __lmargin,
- size_t __rmargin,
- ssize_t __wmargin);
+ size_t __lmargin,
+ size_t __rmargin,
+ ssize_t __wmargin);
extern argp_fmtstream_t argp_make_fmtstream (FILE *__stream,
- size_t __lmargin,
- size_t __rmargin,
- ssize_t __wmargin);
+ size_t __lmargin,
+ size_t __rmargin,
+ ssize_t __wmargin);
/* Flush __FS to its stream, and free it (but don't close the stream). */
extern void __argp_fmtstream_free (argp_fmtstream_t __fs);
extern void argp_fmtstream_free (argp_fmtstream_t __fs);
extern ssize_t __argp_fmtstream_printf (argp_fmtstream_t __fs,
- __const char *__fmt, ...)
- __attribute__ ((__format__ (printf, 2, 3)));
+ const char *__fmt, ...)
+ _GL_ATTRIBUTE_FORMAT ((printf, 2, 3));
extern ssize_t argp_fmtstream_printf (argp_fmtstream_t __fs,
- __const char *__fmt, ...)
- __attribute__ ((__format__ (printf, 2, 3)));
+ const char *__fmt, ...)
+ _GL_ATTRIBUTE_FORMAT ((printf, 2, 3));
+#if _LIBC
extern int __argp_fmtstream_putc (argp_fmtstream_t __fs, int __ch);
extern int argp_fmtstream_putc (argp_fmtstream_t __fs, int __ch);
-extern int __argp_fmtstream_puts (argp_fmtstream_t __fs, __const char *__str);
-extern int argp_fmtstream_puts (argp_fmtstream_t __fs, __const char *__str);
+extern int __argp_fmtstream_puts (argp_fmtstream_t __fs, const char *__str);
+extern int argp_fmtstream_puts (argp_fmtstream_t __fs, const char *__str);
extern size_t __argp_fmtstream_write (argp_fmtstream_t __fs,
- __const char *__str, size_t __len);
+ const char *__str, size_t __len);
extern size_t argp_fmtstream_write (argp_fmtstream_t __fs,
- __const char *__str, size_t __len);
+ const char *__str, size_t __len);
+#endif
\f
/* Access macros for various bits of state. */
#define argp_fmtstream_lmargin(__fs) ((__fs)->lmargin)
#define __argp_fmtstream_rmargin argp_fmtstream_rmargin
#define __argp_fmtstream_wmargin argp_fmtstream_wmargin
+#if _LIBC
/* Set __FS's left margin to LMARGIN and return the old value. */
extern size_t argp_fmtstream_set_lmargin (argp_fmtstream_t __fs,
- size_t __lmargin);
+ size_t __lmargin);
extern size_t __argp_fmtstream_set_lmargin (argp_fmtstream_t __fs,
- size_t __lmargin);
+ size_t __lmargin);
/* Set __FS's right margin to __RMARGIN and return the old value. */
extern size_t argp_fmtstream_set_rmargin (argp_fmtstream_t __fs,
- size_t __rmargin);
+ size_t __rmargin);
extern size_t __argp_fmtstream_set_rmargin (argp_fmtstream_t __fs,
- size_t __rmargin);
+ size_t __rmargin);
/* Set __FS's wrap margin to __WMARGIN and return the old value. */
extern size_t argp_fmtstream_set_wmargin (argp_fmtstream_t __fs,
- size_t __wmargin);
+ size_t __wmargin);
extern size_t __argp_fmtstream_set_wmargin (argp_fmtstream_t __fs,
- size_t __wmargin);
+ size_t __wmargin);
/* Return the column number of the current output point in __FS. */
extern size_t argp_fmtstream_point (argp_fmtstream_t __fs);
extern size_t __argp_fmtstream_point (argp_fmtstream_t __fs);
+#endif
/* Internal routines. */
extern void _argp_fmtstream_update (argp_fmtstream_t __fs);
extern int _argp_fmtstream_ensure (argp_fmtstream_t __fs, size_t __amount);
extern int __argp_fmtstream_ensure (argp_fmtstream_t __fs, size_t __amount);
\f
-#ifdef __OPTIMIZE__
+#if !_LIBC || defined __OPTIMIZE__
/* Inline versions of above routines. */
#if !_LIBC
#define __argp_fmtstream_point argp_fmtstream_point
#define __argp_fmtstream_update _argp_fmtstream_update
#define __argp_fmtstream_ensure _argp_fmtstream_ensure
+#ifndef _GL_INLINE_HEADER_BEGIN
+ #error "Please include config.h first."
+#endif
+_GL_INLINE_HEADER_BEGIN
+#ifndef ARGP_FS_EI
+# define ARGP_FS_EI _GL_INLINE
+#endif
#endif
#ifndef ARGP_FS_EI
-#define ARGP_FS_EI extern inline
+# ifdef __GNUC__
+ /* GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99
+ inline semantics, unless -fgnu89-inline is used. It defines a macro
+ __GNUC_STDC_INLINE__ to indicate this situation or a macro
+ __GNUC_GNU_INLINE__ to indicate the opposite situation.
+
+ GCC 4.2 with -std=c99 or -std=gnu99 implements the GNU C inline
+ semantics but warns, unless -fgnu89-inline is used:
+ warning: C99 inline functions are not supported; using GNU89
+ warning: to disable this warning use -fgnu89-inline or the gnu_inline function attribute
+ It defines a macro __GNUC_GNU_INLINE__ to indicate this situation.
+
+ Whereas Apple GCC 4.0.1 build 5479 without -std=c99 or -std=gnu99
+ implements the GNU C inline semantics and defines the macro
+ __GNUC_GNU_INLINE__, but it does not warn and does not support
+ __attribute__ ((__gnu_inline__)).
+
+ All in all, these are the possible combinations. For every compiler,
+ we need to choose ARGP_FS_EI so that the corresponding table cell
+ contains an "ok".
+
+ \ ARGP_FS_EI inline extern extern
+ \ inline inline
+ CC \ __attribute__
+ ((gnu_inline))
+
+ gcc 4.3.0 error ok ok
+ gcc 4.3.0 -std=gnu99 -fgnu89-inline error ok ok
+ gcc 4.3.0 -std=gnu99 ok error ok
+
+ gcc 4.2.2 error ok ok
+ gcc 4.2.2 -std=gnu99 -fgnu89-inline error ok ok
+ gcc 4.2.2 -std=gnu99 error warning ok
+
+ gcc 4.1.2 error ok warning
+ gcc 4.1.2 -std=gnu99 error ok warning
+
+ Apple gcc 4.0.1 error ok warning
+ Apple gcc 4.0.1 -std=gnu99 ok error warning
+ */
+# if defined __GNUC_STDC_INLINE__
+# define ARGP_FS_EI inline
+# elif __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 2)
+# define ARGP_FS_EI extern inline __attribute__ ((__gnu_inline__))
+# else
+# define ARGP_FS_EI extern inline
+# endif
+# else
+ /* With other compilers, assume the ISO C99 meaning of 'inline', if
+ the compiler supports 'inline' at all. */
+# define ARGP_FS_EI inline
+# endif
#endif
ARGP_FS_EI size_t
__argp_fmtstream_write (argp_fmtstream_t __fs,
- __const char *__str, size_t __len)
+ const char *__str, size_t __len)
{
if (__fs->p + __len <= __fs->end || __argp_fmtstream_ensure (__fs, __len))
{
}
ARGP_FS_EI int
-__argp_fmtstream_puts (argp_fmtstream_t __fs, __const char *__str)
+__argp_fmtstream_puts (argp_fmtstream_t __fs, const char *__str)
{
size_t __len = strlen (__str);
if (__len)
#undef __argp_fmtstream_point
#undef __argp_fmtstream_update
#undef __argp_fmtstream_ensure
+_GL_INLINE_HEADER_END
#endif
-#endif /* __OPTIMIZE__ */
+#endif /* !_LIBC || __OPTIMIZE__ */
#endif /* ARGP_FMTSTREAM_USE_LINEWRAP */
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