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* [PATCH] __THROW in libio revisited
@ 2007-03-30 11:41 Jakub Jelinek
  0 siblings, 0 replies; only message in thread
From: Jakub Jelinek @ 2007-03-30 11:41 UTC (permalink / raw)
  To: Ulrich Drepper; +Cc: Glibc hackers

Hi!

The following functions either directly call cancellation points (usually open,
write, read) or can call it indirectly.
This patch itself doesn't fix BZ#2748, but together with building involved
objects with -fexceptions it would.  While I think I prefer just compiling
whole glibc with -fasynchronous-unwind-tables which doesn't actually require
the __THROW removal (except on exported functions), IMHO nuking __THROW
even just for documentation purposes that a function is a possible
cancellation point is a good idea.

2007-03-30  Jakub Jelinek  <jakub@redhat.com>

	* libio/libio.h (__underflow, __uflow, __overflow, __wunderflow,
	__wuflow, __woverflow, _IO_getc, _IO_putc, _IO_peekc_locked, _IO_padn,
	_IO_sgetn, _IO_seekoff, _IO_seekpos, _IO_getwc, _IO_putwc, _IO_wpadn):
	Remove __THROW.
	* libio/fileops.c (new_do_write, _IO_file_xsgetn_mmap,
	_IO_file_xsgetn_maybe_mmap): Likewise.
	* libio/oldfileops.c (old_do_write): Likewise.
	* libio/libioP.h (_IO_switch_to_get_mode, _IO_switch_to_wget_mode,
	_IO_init_marker, _IO_init_wmarker, _IO_default_uflow,
	_IO_wdefault_uflow, _IO_default_setbuf, _IO_default_seekpos,
	_IO_do_write, _IO_new_do_write, _IO_old_do_write, _IO_wdo_write,
	_IO_flush_all_lockp, _IO_flush_all, _IO_cleanup,
	_IO_flush_all_linebuffered, _IO_new_fgetpos, _IO_old_fgetpos,
	_IO_new_fsetpos, _IO_old_fsetpos, _IO_new_fgetpos64,
	_IO_old_fgetpos64, _IO_new_fsetpos64, _IO_old_fsetpos64,
	_IO_file_setbuf, _IO_file_seekoff, _IO_file_xsputn, _IO_file_xsgetn,
	_IO_file_underflow, _IO_file_underflow_mmap,
	_IO_file_underflow_maybe_mmap, _IO_file_overflow, _IO_file_attach,
	_IO_file_open, _IO_file_fopen, _IO_file_write, _IO_file_read,
	_IO_file_sync, _IO_file_close_it, _IO_file_finish,
	_IO_new_file_attach, _IO_new_file_close_it, _IO_new_file_finish,
	_IO_new_file_fopen, _IO_new_file_setbuf, _IO_file_setbuf_mmap,
	_IO_new_file_sync, _IO_new_file_underflow, _IO_new_file_overflow,
	_IO_new_file_seekoff, _IO_new_file_write, _IO_new_file_xsputn,
	_IO_old_file_setbuf, _IO_old_file_seekoff, _IO_old_file_xsputn,
	_IO_old_file_underflow, _IO_old_file_overflow, _IO_old_file_attach,
	_IO_old_file_fopen, _IO_old_file_write, _IO_old_file_sync,
	_IO_old_file_close_it, _IO_old_file_finish, _IO_wfile_xsputn,
	_IO_wfile_setbuf, _IO_wfile_sync, _IO_wfile_underflow,
	_IO_wfile_overflow, _IO_wfile_seekoff, _IO_old_proc_open,
	_IO_old_proc_close, _IO_getdelim, _IO_flush_all_internal,
	_IO_adjust_column_internal, _IO_default_uflow_internal,
	_IO_default_xsgetn_internal, _IO_wdefault_xsputn_internal,
	_IO_wdefault_xsgetn_internal, _IO_wdefault_uflow_internal,
	_IO_file_setbuf_internal, _IO_file_seekoff_internal,
	_IO_file_xsputn_internal, _IO_file_xsgetn_internal,
	_IO_file_close_it_internal, _IO_file_underflow_internal,
	_IO_file_overflow_internal, _IO_file_attach_internal,
	_IO_file_fopen_internal, _IO_file_sync_internal,
	_IO_file_finish_internal, _IO_wfile_xsputn_internal,
	_IO_wfile_seekoff_internal, _IO_wfile_sync_internal,
	_IO_switch_to_wget_mode_internal, _IO_padn_internal,
	_IO_switch_to_get_mode_internal, _IO_seekoff_unlocked,
	_IO_seekpos_unlocked): Likewise.
	(_IO_strtod, _IO_dtoa, _IO_outfloat, _IO_read, _IO_write,
	_IO_lseek, _IO_close, _IO_fstat): Remove unused prototypes.

--- libc/libio/libio.h.jj	2007-01-03 10:59:40.000000000 +0100
+++ libc/libio/libio.h	2007-03-29 18:50:38.000000000 +0200
@@ -410,12 +410,12 @@ extern void _IO_cookie_init (struct _IO_
 extern "C" {
 #endif
 
-extern int __underflow (_IO_FILE *) __THROW;
-extern int __uflow (_IO_FILE *) __THROW;
-extern int __overflow (_IO_FILE *, int) __THROW;
-extern _IO_wint_t __wunderflow (_IO_FILE *) __THROW;
-extern _IO_wint_t __wuflow (_IO_FILE *) __THROW;
-extern _IO_wint_t __woverflow (_IO_FILE *, _IO_wint_t) __THROW;
+extern int __underflow (_IO_FILE *);
+extern int __uflow (_IO_FILE *);
+extern int __overflow (_IO_FILE *, int);
+extern _IO_wint_t __wunderflow (_IO_FILE *);
+extern _IO_wint_t __wuflow (_IO_FILE *);
+extern _IO_wint_t __woverflow (_IO_FILE *, _IO_wint_t);
 
 #if  __GNUC__ >= 3
 # define _IO_BE(expr, res) __builtin_expect ((expr), res)
@@ -448,12 +448,12 @@ extern _IO_wint_t __woverflow (_IO_FILE 
 #define _IO_feof_unlocked(__fp) (((__fp)->_flags & _IO_EOF_SEEN) != 0)
 #define _IO_ferror_unlocked(__fp) (((__fp)->_flags & _IO_ERR_SEEN) != 0)
 
-extern int _IO_getc (_IO_FILE *__fp) __THROW;
-extern int _IO_putc (int __c, _IO_FILE *__fp) __THROW;
+extern int _IO_getc (_IO_FILE *__fp);
+extern int _IO_putc (int __c, _IO_FILE *__fp);
 extern int _IO_feof (_IO_FILE *__fp) __THROW;
 extern int _IO_ferror (_IO_FILE *__fp) __THROW;
 
-extern int _IO_peekc_locked (_IO_FILE *__fp) __THROW;
+extern int _IO_peekc_locked (_IO_FILE *__fp);
 
 /* This one is for Emacs. */
 #define _IO_PENDING_OUTPUT_COUNT(_fp)	\
@@ -482,17 +482,17 @@ extern int _IO_vfscanf (_IO_FILE * __res
 			_IO_va_list, int *__restrict);
 extern int _IO_vfprintf (_IO_FILE *__restrict, const char *__restrict,
 			 _IO_va_list);
-extern _IO_ssize_t _IO_padn (_IO_FILE *, int, _IO_ssize_t) __THROW;
-extern _IO_size_t _IO_sgetn (_IO_FILE *, void *, _IO_size_t) __THROW;
+extern _IO_ssize_t _IO_padn (_IO_FILE *, int, _IO_ssize_t);
+extern _IO_size_t _IO_sgetn (_IO_FILE *, void *, _IO_size_t);
 
-extern _IO_off64_t _IO_seekoff (_IO_FILE *, _IO_off64_t, int, int) __THROW;
-extern _IO_off64_t _IO_seekpos (_IO_FILE *, _IO_off64_t, int) __THROW;
+extern _IO_off64_t _IO_seekoff (_IO_FILE *, _IO_off64_t, int, int);
+extern _IO_off64_t _IO_seekpos (_IO_FILE *, _IO_off64_t, int);
 
 extern void _IO_free_backup_area (_IO_FILE *) __THROW;
 
 #if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
-extern _IO_wint_t _IO_getwc (_IO_FILE *__fp) __THROW;
-extern _IO_wint_t _IO_putwc (wchar_t __wc, _IO_FILE *__fp) __THROW;
+extern _IO_wint_t _IO_getwc (_IO_FILE *__fp);
+extern _IO_wint_t _IO_putwc (wchar_t __wc, _IO_FILE *__fp);
 extern int _IO_fwide (_IO_FILE *__fp, int __mode) __THROW;
 # if __GNUC__ >= 2
 /* While compiling glibc we have to handle compatibility with very old
@@ -531,7 +531,7 @@ extern int _IO_vfwscanf (_IO_FILE * __re
 			 _IO_va_list, int *__restrict);
 extern int _IO_vfwprintf (_IO_FILE *__restrict, const wchar_t *__restrict,
 			  _IO_va_list);
-extern _IO_ssize_t _IO_wpadn (_IO_FILE *, wint_t, _IO_ssize_t) __THROW;
+extern _IO_ssize_t _IO_wpadn (_IO_FILE *, wint_t, _IO_ssize_t);
 extern void _IO_free_wbackup_area (_IO_FILE *) __THROW;
 #endif
 
--- libc/libio/fileops.c.jj	2007-01-17 11:18:43.000000000 +0100
+++ libc/libio/fileops.c	2007-03-29 18:55:52.000000000 +0200
@@ -1,4 +1,5 @@
-/* Copyright (C) 1993, 1995, 1997-2005, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 1993, 1995, 1997-2005, 2006, 2007
+   Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Per Bothner <bothner@cygnus.com>.
 
@@ -472,7 +473,7 @@ _IO_file_setbuf_mmap (fp, p, len)
   return result;
 }
 
-static _IO_size_t new_do_write (_IO_FILE *, const char *, _IO_size_t) __THROW;
+static _IO_size_t new_do_write (_IO_FILE *, const char *, _IO_size_t);
 
 /* Write TO_DO bytes from DATA to FP.
    Then mark FP as having empty buffers. */
@@ -1468,8 +1469,7 @@ _IO_file_xsgetn (fp, data, n)
 }
 INTDEF(_IO_file_xsgetn)
 
-static _IO_size_t _IO_file_xsgetn_mmap (_IO_FILE *, void *, _IO_size_t)
-     __THROW;
+static _IO_size_t _IO_file_xsgetn_mmap (_IO_FILE *, void *, _IO_size_t);
 static _IO_size_t
 _IO_file_xsgetn_mmap (fp, data, n)
      _IO_FILE *fp;
@@ -1528,8 +1528,7 @@ _IO_file_xsgetn_mmap (fp, data, n)
   return s - (char *) data;
 }
 
-static _IO_size_t _IO_file_xsgetn_maybe_mmap (_IO_FILE *, void *, _IO_size_t)
-     __THROW;
+static _IO_size_t _IO_file_xsgetn_maybe_mmap (_IO_FILE *, void *, _IO_size_t);
 static _IO_size_t
 _IO_file_xsgetn_maybe_mmap (fp, data, n)
      _IO_FILE *fp;
--- libc/libio/oldfileops.c.jj	2005-10-17 17:54:13.000000000 +0200
+++ libc/libio/oldfileops.c	2007-03-29 18:54:48.000000000 +0200
@@ -1,4 +1,5 @@
-/* Copyright (C) 1993, 1995, 1997-2004, 2005 Free Software Foundation, Inc.
+/* Copyright (C) 1993, 1995, 1997-2004, 2005, 2007
+   Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Per Bothner <bothner@cygnus.com>.
 
@@ -271,7 +272,7 @@ _IO_old_file_setbuf (fp, p, len)
     return fp;
 }
 
-static int old_do_write (_IO_FILE *, const char *, _IO_size_t) __THROW;
+static int old_do_write (_IO_FILE *, const char *, _IO_size_t);
 
 /* Write TO_DO bytes from DATA to FP.
    Then mark FP as having empty buffers. */
--- libc/libio/libioP.h.jj	2006-01-14 13:09:46.000000000 +0100
+++ libc/libio/libioP.h	2007-03-29 18:38:10.000000000 +0200
@@ -1,4 +1,4 @@
-/* Copyright (C) 1993, 1997-2003,2004,2005,2006
+/* Copyright (C) 1993, 1997-2003,2004,2005,2006,2007
 	Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -380,7 +380,7 @@ typedef struct _IO_FILE *_IO_ITER;
 
 extern void _IO_switch_to_main_get_area (_IO_FILE *) __THROW;
 extern void _IO_switch_to_backup_area (_IO_FILE *) __THROW;
-extern int _IO_switch_to_get_mode (_IO_FILE *) __THROW;
+extern int _IO_switch_to_get_mode (_IO_FILE *);
 extern void _IO_init (_IO_FILE *, int) __THROW;
 extern int _IO_sputbackc (_IO_FILE *, int) __THROW;
 extern int _IO_sungetc (_IO_FILE *) __THROW;
@@ -394,7 +394,7 @@ extern unsigned _IO_adjust_column (unsig
 
 extern void _IO_switch_to_main_wget_area (_IO_FILE *) __THROW;
 extern void _IO_switch_to_wbackup_area (_IO_FILE *) __THROW;
-extern int _IO_switch_to_wget_mode (_IO_FILE *) __THROW;
+extern int _IO_switch_to_wget_mode (_IO_FILE *);
 extern void _IO_wsetb (_IO_FILE *, wchar_t *, wchar_t *, int) __THROW;
 extern wint_t _IO_sputbackwc (_IO_FILE *, wint_t) __THROW;
 extern wint_t _IO_sungetwc (_IO_FILE *) __THROW;
@@ -404,8 +404,8 @@ extern unsigned _IO_adjust_wcolumn (unsi
 
 /* Marker-related function. */
 
-extern void _IO_init_marker (struct _IO_marker *, _IO_FILE *) __THROW;
-extern void _IO_init_wmarker (struct _IO_marker *, _IO_FILE *) __THROW;
+extern void _IO_init_marker (struct _IO_marker *, _IO_FILE *);
+extern void _IO_init_wmarker (struct _IO_marker *, _IO_FILE *);
 extern void _IO_remove_marker (struct _IO_marker *) __THROW;
 extern int _IO_marker_difference (struct _IO_marker *, struct _IO_marker *)
      __THROW;
@@ -434,22 +434,22 @@ libc_hidden_proto (_IO_list_resetlock)
 /* Default jumptable functions. */
 
 extern int _IO_default_underflow (_IO_FILE *) __THROW;
-extern int _IO_default_uflow (_IO_FILE *) __THROW;
-extern wint_t _IO_wdefault_uflow (_IO_FILE *) __THROW;
+extern int _IO_default_uflow (_IO_FILE *);
+extern wint_t _IO_wdefault_uflow (_IO_FILE *);
 extern int _IO_default_doallocate (_IO_FILE *) __THROW;
 extern int _IO_wdefault_doallocate (_IO_FILE *) __THROW;
 extern void _IO_default_finish (_IO_FILE *, int) __THROW;
 extern void _IO_wdefault_finish (_IO_FILE *, int) __THROW;
 extern int _IO_default_pbackfail (_IO_FILE *, int) __THROW;
 extern wint_t _IO_wdefault_pbackfail (_IO_FILE *, wint_t) __THROW;
-extern _IO_FILE* _IO_default_setbuf (_IO_FILE *, char *, _IO_ssize_t) __THROW;
+extern _IO_FILE* _IO_default_setbuf (_IO_FILE *, char *, _IO_ssize_t);
 extern _IO_size_t _IO_default_xsputn (_IO_FILE *, const void *, _IO_size_t);
 extern _IO_size_t _IO_wdefault_xsputn (_IO_FILE *, const void *, _IO_size_t);
 extern _IO_size_t _IO_default_xsgetn (_IO_FILE *, void *, _IO_size_t);
 extern _IO_size_t _IO_wdefault_xsgetn (_IO_FILE *, void *, _IO_size_t);
 extern _IO_off64_t _IO_default_seekoff (_IO_FILE *, _IO_off64_t, int, int)
      __THROW;
-extern _IO_off64_t _IO_default_seekpos (_IO_FILE *, _IO_off64_t, int) __THROW;
+extern _IO_off64_t _IO_default_seekpos (_IO_FILE *, _IO_off64_t, int);
 extern _IO_ssize_t _IO_default_write (_IO_FILE *, const void *, _IO_ssize_t);
 extern _IO_ssize_t _IO_default_read (_IO_FILE *, void *, _IO_ssize_t);
 extern int _IO_default_stat (_IO_FILE *, void *) __THROW;
@@ -473,22 +473,22 @@ extern const struct _IO_jump_t _IO_old_p
 extern const struct _IO_jump_t _IO_str_jumps attribute_hidden;
 extern const struct _IO_jump_t _IO_wstr_jumps attribute_hidden;
 extern const struct _IO_codecvt __libio_codecvt attribute_hidden;
-extern int _IO_do_write (_IO_FILE *, const char *, _IO_size_t) __THROW;
-extern int _IO_new_do_write (_IO_FILE *, const char *, _IO_size_t) __THROW;
-extern int _IO_old_do_write (_IO_FILE *, const char *, _IO_size_t) __THROW;
-extern int _IO_wdo_write (_IO_FILE *, const wchar_t *, _IO_size_t) __THROW;
-extern int _IO_flush_all_lockp (int) __THROW;
-extern int _IO_flush_all (void) __THROW;
-extern int _IO_cleanup (void) __THROW;
-extern void _IO_flush_all_linebuffered (void) __THROW;
-extern int _IO_new_fgetpos (_IO_FILE *, _IO_fpos_t *) __THROW;
-extern int _IO_old_fgetpos (_IO_FILE *, _IO_fpos_t *) __THROW;
-extern int _IO_new_fsetpos (_IO_FILE *, const _IO_fpos_t *) __THROW;
-extern int _IO_old_fsetpos (_IO_FILE *, const _IO_fpos_t *) __THROW;
-extern int _IO_new_fgetpos64 (_IO_FILE *, _IO_fpos64_t *) __THROW;
-extern int _IO_old_fgetpos64 (_IO_FILE *, _IO_fpos64_t *) __THROW;
-extern int _IO_new_fsetpos64 (_IO_FILE *, const _IO_fpos64_t *) __THROW;
-extern int _IO_old_fsetpos64 (_IO_FILE *, const _IO_fpos64_t *) __THROW;
+extern int _IO_do_write (_IO_FILE *, const char *, _IO_size_t);
+extern int _IO_new_do_write (_IO_FILE *, const char *, _IO_size_t);
+extern int _IO_old_do_write (_IO_FILE *, const char *, _IO_size_t);
+extern int _IO_wdo_write (_IO_FILE *, const wchar_t *, _IO_size_t);
+extern int _IO_flush_all_lockp (int);
+extern int _IO_flush_all (void);
+extern int _IO_cleanup (void);
+extern void _IO_flush_all_linebuffered (void);
+extern int _IO_new_fgetpos (_IO_FILE *, _IO_fpos_t *);
+extern int _IO_old_fgetpos (_IO_FILE *, _IO_fpos_t *);
+extern int _IO_new_fsetpos (_IO_FILE *, const _IO_fpos_t *);
+extern int _IO_old_fsetpos (_IO_FILE *, const _IO_fpos_t *);
+extern int _IO_new_fgetpos64 (_IO_FILE *, _IO_fpos64_t *);
+extern int _IO_old_fgetpos64 (_IO_FILE *, _IO_fpos64_t *);
+extern int _IO_new_fsetpos64 (_IO_FILE *, const _IO_fpos64_t *);
+extern int _IO_old_fsetpos64 (_IO_FILE *, const _IO_fpos64_t *);
 extern void _IO_old_init (_IO_FILE *fp, int flags) __THROW;
 
 
@@ -534,95 +534,79 @@ extern void _IO_old_init (_IO_FILE *fp, 
 /* Jumptable functions for files. */
 
 extern int _IO_file_doallocate (_IO_FILE *) __THROW;
-extern _IO_FILE* _IO_file_setbuf (_IO_FILE *, char *, _IO_ssize_t) __THROW;
-extern _IO_off64_t _IO_file_seekoff (_IO_FILE *, _IO_off64_t, int, int)
-     __THROW;
+extern _IO_FILE* _IO_file_setbuf (_IO_FILE *, char *, _IO_ssize_t);
+extern _IO_off64_t _IO_file_seekoff (_IO_FILE *, _IO_off64_t, int, int);
 extern _IO_off64_t _IO_file_seekoff_mmap (_IO_FILE *, _IO_off64_t, int, int)
      __THROW;
-extern _IO_size_t _IO_file_xsputn (_IO_FILE *, const void *, _IO_size_t)
-     __THROW;
-extern _IO_size_t _IO_file_xsgetn (_IO_FILE *, void *, _IO_size_t) __THROW;
+extern _IO_size_t _IO_file_xsputn (_IO_FILE *, const void *, _IO_size_t);
+extern _IO_size_t _IO_file_xsgetn (_IO_FILE *, void *, _IO_size_t);
 extern int _IO_file_stat (_IO_FILE *, void *) __THROW;
 extern int _IO_file_close (_IO_FILE *) __THROW;
 extern int _IO_file_close_mmap (_IO_FILE *) __THROW;
-extern int _IO_file_underflow (_IO_FILE *) __THROW;
-extern int _IO_file_underflow_mmap (_IO_FILE *) __THROW;
-extern int _IO_file_underflow_maybe_mmap (_IO_FILE *) __THROW;
-extern int _IO_file_overflow (_IO_FILE *, int) __THROW;
+extern int _IO_file_underflow (_IO_FILE *);
+extern int _IO_file_underflow_mmap (_IO_FILE *);
+extern int _IO_file_underflow_maybe_mmap (_IO_FILE *);
+extern int _IO_file_overflow (_IO_FILE *, int);
 #define _IO_file_is_open(__fp) ((__fp)->_fileno != -1)
 extern void _IO_file_init (struct _IO_FILE_plus *) __THROW;
-extern _IO_FILE* _IO_file_attach (_IO_FILE *, int) __THROW;
-extern _IO_FILE* _IO_file_open (_IO_FILE *, const char *, int, int, int, int)
-     __THROW;
+extern _IO_FILE* _IO_file_attach (_IO_FILE *, int);
+extern _IO_FILE* _IO_file_open (_IO_FILE *, const char *, int, int, int, int);
 libc_hidden_proto (_IO_file_open)
-extern _IO_FILE* _IO_file_fopen (_IO_FILE *, const char *, const char *, int)
-     __THROW;
-extern _IO_ssize_t _IO_file_write (_IO_FILE *, const void *, _IO_ssize_t)
-     __THROW;
-extern _IO_ssize_t _IO_file_read (_IO_FILE *, void *, _IO_ssize_t) __THROW;
-extern int _IO_file_sync (_IO_FILE *) __THROW;
-extern int _IO_file_close_it (_IO_FILE *) __THROW;
+extern _IO_FILE* _IO_file_fopen (_IO_FILE *, const char *, const char *, int);
+extern _IO_ssize_t _IO_file_write (_IO_FILE *, const void *, _IO_ssize_t);
+extern _IO_ssize_t _IO_file_read (_IO_FILE *, void *, _IO_ssize_t);
+extern int _IO_file_sync (_IO_FILE *);
+extern int _IO_file_close_it (_IO_FILE *);
 extern _IO_off64_t _IO_file_seek (_IO_FILE *, _IO_off64_t, int) __THROW;
-extern void _IO_file_finish (_IO_FILE *, int) __THROW;
+extern void _IO_file_finish (_IO_FILE *, int);
 
-extern _IO_FILE* _IO_new_file_attach (_IO_FILE *, int) __THROW;
-extern int _IO_new_file_close_it (_IO_FILE *) __THROW;
-extern void _IO_new_file_finish (_IO_FILE *, int) __THROW;
+extern _IO_FILE* _IO_new_file_attach (_IO_FILE *, int);
+extern int _IO_new_file_close_it (_IO_FILE *);
+extern void _IO_new_file_finish (_IO_FILE *, int);
 extern _IO_FILE* _IO_new_file_fopen (_IO_FILE *, const char *, const char *,
-				     int) __THROW;
+				     int);
 extern void _IO_no_init (_IO_FILE *, int, int, struct _IO_wide_data *,
 			 const struct _IO_jump_t *) __THROW;
 extern void _IO_new_file_init (struct _IO_FILE_plus *) __THROW;
-extern _IO_FILE* _IO_new_file_setbuf (_IO_FILE *, char *, _IO_ssize_t) __THROW;
-extern _IO_FILE* _IO_file_setbuf_mmap (_IO_FILE *, char *, _IO_ssize_t)
-     __THROW;
-extern int _IO_new_file_sync (_IO_FILE *) __THROW;
-extern int _IO_new_file_underflow (_IO_FILE *) __THROW;
-extern int _IO_new_file_overflow (_IO_FILE *, int) __THROW;
-extern _IO_off64_t _IO_new_file_seekoff (_IO_FILE *, _IO_off64_t, int, int)
-     __THROW;
-extern _IO_ssize_t _IO_new_file_write (_IO_FILE *, const void *, _IO_ssize_t)
-     __THROW;
-extern _IO_size_t _IO_new_file_xsputn (_IO_FILE *, const void *, _IO_size_t)
-     __THROW;
-
-extern _IO_FILE* _IO_old_file_setbuf (_IO_FILE *, char *, _IO_ssize_t) __THROW;
-extern _IO_off64_t _IO_old_file_seekoff (_IO_FILE *, _IO_off64_t, int, int)
-     __THROW;
-extern _IO_size_t _IO_old_file_xsputn (_IO_FILE *, const void *, _IO_size_t)
-     __THROW;
-extern int _IO_old_file_underflow (_IO_FILE *) __THROW;
-extern int _IO_old_file_overflow (_IO_FILE *, int) __THROW;
+extern _IO_FILE* _IO_new_file_setbuf (_IO_FILE *, char *, _IO_ssize_t);
+extern _IO_FILE* _IO_file_setbuf_mmap (_IO_FILE *, char *, _IO_ssize_t);
+extern int _IO_new_file_sync (_IO_FILE *);
+extern int _IO_new_file_underflow (_IO_FILE *);
+extern int _IO_new_file_overflow (_IO_FILE *, int);
+extern _IO_off64_t _IO_new_file_seekoff (_IO_FILE *, _IO_off64_t, int, int);
+extern _IO_ssize_t _IO_new_file_write (_IO_FILE *, const void *, _IO_ssize_t);
+extern _IO_size_t _IO_new_file_xsputn (_IO_FILE *, const void *, _IO_size_t);
+
+extern _IO_FILE* _IO_old_file_setbuf (_IO_FILE *, char *, _IO_ssize_t);
+extern _IO_off64_t _IO_old_file_seekoff (_IO_FILE *, _IO_off64_t, int, int);
+extern _IO_size_t _IO_old_file_xsputn (_IO_FILE *, const void *, _IO_size_t);
+extern int _IO_old_file_underflow (_IO_FILE *);
+extern int _IO_old_file_overflow (_IO_FILE *, int);
 extern void _IO_old_file_init (struct _IO_FILE_plus *) __THROW;
-extern _IO_FILE* _IO_old_file_attach (_IO_FILE *, int) __THROW;
-extern _IO_FILE* _IO_old_file_fopen (_IO_FILE *, const char *, const char *)
-     __THROW;
-extern _IO_ssize_t _IO_old_file_write (_IO_FILE *, const void *, _IO_ssize_t)
-     __THROW;
-extern int _IO_old_file_sync (_IO_FILE *) __THROW;
-extern int _IO_old_file_close_it (_IO_FILE *) __THROW;
-extern void _IO_old_file_finish (_IO_FILE *, int) __THROW;
+extern _IO_FILE* _IO_old_file_attach (_IO_FILE *, int);
+extern _IO_FILE* _IO_old_file_fopen (_IO_FILE *, const char *, const char *);
+extern _IO_ssize_t _IO_old_file_write (_IO_FILE *, const void *, _IO_ssize_t);
+extern int _IO_old_file_sync (_IO_FILE *);
+extern int _IO_old_file_close_it (_IO_FILE *);
+extern void _IO_old_file_finish (_IO_FILE *, int);
 
 extern int _IO_wfile_doallocate (_IO_FILE *) __THROW;
-extern _IO_size_t _IO_wfile_xsputn (_IO_FILE *, const void *, _IO_size_t)
-     __THROW;
-extern _IO_FILE* _IO_wfile_setbuf (_IO_FILE *, wchar_t *, _IO_ssize_t) __THROW;
-extern wint_t _IO_wfile_sync (_IO_FILE *) __THROW;
-extern wint_t _IO_wfile_underflow (_IO_FILE *) __THROW;
-extern wint_t _IO_wfile_overflow (_IO_FILE *, wint_t) __THROW;
-extern _IO_off64_t _IO_wfile_seekoff (_IO_FILE *, _IO_off64_t, int, int)
-     __THROW;
+extern _IO_size_t _IO_wfile_xsputn (_IO_FILE *, const void *, _IO_size_t);
+extern _IO_FILE* _IO_wfile_setbuf (_IO_FILE *, wchar_t *, _IO_ssize_t);
+extern wint_t _IO_wfile_sync (_IO_FILE *);
+extern wint_t _IO_wfile_underflow (_IO_FILE *);
+extern wint_t _IO_wfile_overflow (_IO_FILE *, wint_t);
+extern _IO_off64_t _IO_wfile_seekoff (_IO_FILE *, _IO_off64_t, int, int);
 
 /* Jumptable functions for proc_files. */
 extern _IO_FILE* _IO_proc_open (_IO_FILE *, const char *, const char *)
      __THROW;
 extern _IO_FILE* _IO_new_proc_open (_IO_FILE *, const char *, const char *)
      __THROW;
-extern _IO_FILE* _IO_old_proc_open (_IO_FILE *, const char *, const char *)
-     __THROW;
+extern _IO_FILE* _IO_old_proc_open (_IO_FILE *, const char *, const char *);
 extern int _IO_proc_close (_IO_FILE *) __THROW;
 extern int _IO_new_proc_close (_IO_FILE *) __THROW;
-extern int _IO_old_proc_close (_IO_FILE *) __THROW;
+extern int _IO_old_proc_close (_IO_FILE *);
 
 /* Jumptable functions for strfiles. */
 extern int _IO_str_underflow (_IO_FILE *) __THROW;
@@ -660,73 +644,62 @@ extern int _IO_vsnprintf (char *string, 
 extern _IO_size_t _IO_getline (_IO_FILE *,char *, _IO_size_t, int, int);
 extern _IO_size_t _IO_getline_info (_IO_FILE *,char *, _IO_size_t,
 				    int, int, int *);
-extern _IO_ssize_t _IO_getdelim (char **, _IO_size_t *, int, _IO_FILE *)
-     __THROW;
+extern _IO_ssize_t _IO_getdelim (char **, _IO_size_t *, int, _IO_FILE *);
 extern _IO_size_t _IO_getwline (_IO_FILE *,wchar_t *, _IO_size_t, wint_t, int);
 extern _IO_size_t _IO_getwline_info (_IO_FILE *,wchar_t *, _IO_size_t,
 				     wint_t, int, wint_t *);
-extern double _IO_strtod (const char *, char **) __THROW;
-extern char *_IO_dtoa (double __d, int __mode, int __ndigits,
-		       int *__decpt, int *__sign, char **__rve) __THROW;
-extern int _IO_outfloat (double __value, _IO_FILE *__sb, int __type,
-			 int __width, int __precision, int __flags,
-			 int __sign_mode, int __fill) __THROW;
 
 extern struct _IO_FILE_plus *_IO_list_all;
 extern void (*_IO_cleanup_registration_needed) (void);
 
 /* Prototype for functions with alternative entry point.  */
-extern int _IO_flush_all_internal (void) __THROW;
-extern unsigned _IO_adjust_column_internal (unsigned, const char *, int)
-     __THROW;
+extern int _IO_flush_all_internal (void);
+extern unsigned _IO_adjust_column_internal (unsigned, const char *, int);
 
-extern int _IO_default_uflow_internal (_IO_FILE *) __THROW;
+extern int _IO_default_uflow_internal (_IO_FILE *);
 extern void _IO_default_finish_internal (_IO_FILE *, int) __THROW;
 extern int _IO_default_pbackfail_internal (_IO_FILE *, int) __THROW;
 extern _IO_size_t _IO_default_xsputn_internal (_IO_FILE *, const void *,
-					       _IO_size_t) __THROW;
-extern _IO_size_t _IO_default_xsgetn_internal (_IO_FILE *, void *, _IO_size_t)
-     __THROW;
+					       _IO_size_t);
+extern _IO_size_t _IO_default_xsgetn_internal (_IO_FILE *, void *, _IO_size_t);
 extern int _IO_default_doallocate_internal (_IO_FILE *) __THROW;
 extern void _IO_wdefault_finish_internal (_IO_FILE *, int) __THROW;
 extern wint_t _IO_wdefault_pbackfail_internal (_IO_FILE *, wint_t) __THROW;
 extern _IO_size_t _IO_wdefault_xsputn_internal (_IO_FILE *, const void *,
-						_IO_size_t) __THROW;
+						_IO_size_t);
 extern _IO_size_t _IO_wdefault_xsgetn_internal (_IO_FILE *, void *,
-						_IO_size_t) __THROW;
+						_IO_size_t);
 extern int _IO_wdefault_doallocate_internal (_IO_FILE *) __THROW;
-extern wint_t _IO_wdefault_uflow_internal (_IO_FILE *) __THROW;
+extern wint_t _IO_wdefault_uflow_internal (_IO_FILE *);
 
 extern int _IO_file_doallocate_internal (_IO_FILE *) __THROW;
-extern _IO_FILE* _IO_file_setbuf_internal (_IO_FILE *, char *, _IO_ssize_t)
-     __THROW;
+extern _IO_FILE* _IO_file_setbuf_internal (_IO_FILE *, char *, _IO_ssize_t);
 extern _IO_off64_t _IO_file_seekoff_internal (_IO_FILE *, _IO_off64_t,
-					      int, int) __THROW;
+					      int, int);
 extern _IO_size_t _IO_file_xsputn_internal (_IO_FILE *, const void *,
-					    _IO_size_t) __THROW;
-extern _IO_size_t _IO_file_xsgetn_internal (_IO_FILE *, void *, _IO_size_t)
-     __THROW;
+					    _IO_size_t);
+extern _IO_size_t _IO_file_xsgetn_internal (_IO_FILE *, void *, _IO_size_t);
 extern int _IO_file_stat_internal (_IO_FILE *, void *) __THROW;
 extern int _IO_file_close_internal (_IO_FILE *) __THROW;
-extern int _IO_file_close_it_internal (_IO_FILE *) __THROW;
-extern int _IO_file_underflow_internal (_IO_FILE *) __THROW;
-extern int _IO_file_overflow_internal (_IO_FILE *, int) __THROW;
+extern int _IO_file_close_it_internal (_IO_FILE *);
+extern int _IO_file_underflow_internal (_IO_FILE *);
+extern int _IO_file_overflow_internal (_IO_FILE *, int);
 extern void _IO_file_init_internal (struct _IO_FILE_plus *) __THROW;
-extern _IO_FILE* _IO_file_attach_internal (_IO_FILE *, int) __THROW;
+extern _IO_FILE* _IO_file_attach_internal (_IO_FILE *, int);
 extern _IO_FILE* _IO_file_fopen_internal (_IO_FILE *, const char *,
-					  const char *, int) __THROW;
+					  const char *, int);
 extern _IO_ssize_t _IO_file_read_internal (_IO_FILE *, void *,
 					   _IO_ssize_t);
-extern int _IO_file_sync_internal (_IO_FILE *) __THROW;
+extern int _IO_file_sync_internal (_IO_FILE *);
 extern _IO_off64_t _IO_file_seek_internal (_IO_FILE *, _IO_off64_t, int)
      __THROW;
-extern void _IO_file_finish_internal (_IO_FILE *, int) __THROW;
+extern void _IO_file_finish_internal (_IO_FILE *, int);
 
 extern _IO_size_t _IO_wfile_xsputn_internal (_IO_FILE *, const void *,
-					     _IO_size_t) __THROW;
+					     _IO_size_t);
 extern _IO_off64_t _IO_wfile_seekoff_internal (_IO_FILE *, _IO_off64_t,
-					       int, int) __THROW;
-extern wint_t _IO_wfile_sync_internal (_IO_FILE *) __THROW;
+					       int, int);
+extern wint_t _IO_wfile_sync_internal (_IO_FILE *);
 
 extern int _IO_str_underflow_internal (_IO_FILE *) __THROW;
 extern int _IO_str_overflow_internal (_IO_FILE *, int) __THROW;
@@ -747,12 +720,12 @@ extern void _IO_wdoallocbuf_internal (_I
 
 extern _IO_size_t _IO_sgetn_internal (_IO_FILE *, void *, _IO_size_t);
 extern void _IO_flush_all_linebuffered_internal (void) __THROW;
-extern int _IO_switch_to_wget_mode_internal (_IO_FILE *) __THROW;
+extern int _IO_switch_to_wget_mode_internal (_IO_FILE *);
 extern void _IO_unsave_markers_internal (_IO_FILE *) __THROW;
 extern void _IO_switch_to_main_wget_area_internal (_IO_FILE *) __THROW;
 extern int _IO_wdo_write_internal (_IO_FILE *, const wchar_t *, _IO_size_t);
 extern int _IO_do_write_internal (_IO_FILE *, const char *, _IO_size_t);
-extern _IO_ssize_t _IO_padn_internal (_IO_FILE *, int, _IO_ssize_t) __THROW;
+extern _IO_ssize_t _IO_padn_internal (_IO_FILE *, int, _IO_ssize_t);
 extern _IO_size_t _IO_getline_info_internal (_IO_FILE *,char *, _IO_size_t,
 					     int, int, int *);
 extern _IO_size_t _IO_getline_internal (_IO_FILE *, char *, _IO_size_t, int,
@@ -762,7 +735,7 @@ extern void _IO_free_backup_area_interna
 extern void _IO_switch_to_wbackup_area_internal (_IO_FILE *) __THROW;
 extern void _IO_setb_internal (_IO_FILE *, char *, char *, int) __THROW;
 extern wint_t _IO_sputbackwc_internal (_IO_FILE *, wint_t) __THROW;
-extern int _IO_switch_to_get_mode_internal (_IO_FILE *) __THROW;
+extern int _IO_switch_to_get_mode_internal (_IO_FILE *);
 extern int _IO_vfscanf_internal (_IO_FILE * __restrict,
 				 const char * __restrict,
 				 _IO_va_list, int *__restrict);
@@ -772,9 +745,9 @@ extern void _IO_doallocbuf_internal (_IO
 extern void _IO_wsetb_internal (_IO_FILE *, wchar_t *, wchar_t *, int)
      __THROW;
 extern _IO_off64_t _IO_seekoff_unlocked (_IO_FILE *, _IO_off64_t, int, int)
-     attribute_hidden __THROW;
+     attribute_hidden;
 extern _IO_off64_t _IO_seekpos_unlocked (_IO_FILE *, _IO_off64_t, int)
-     attribute_hidden __THROW;
+     attribute_hidden;
 extern int _IO_putc_internal (int __c, _IO_FILE *__fp);
 extern void _IO_init_internal (_IO_FILE *, int) __THROW;
 extern void _IO_un_link_internal (struct _IO_FILE_plus *) __THROW;
@@ -866,12 +839,6 @@ extern void _IO_un_link_internal (struct
 #ifndef OS_FSTAT
 # define OS_FSTAT fstat
 #endif
-struct stat;
-extern _IO_ssize_t _IO_read (int, void *, _IO_size_t);
-extern _IO_ssize_t _IO_write (int, const void *, _IO_size_t);
-extern _IO_off64_t _IO_lseek (int, _IO_off64_t, int) __THROW;
-extern int _IO_close (int);
-extern int _IO_fstat (int, struct stat *) __THROW;
 extern int _IO_vscanf (const char *, _IO_va_list) __THROW;
 
 /* _IO_pos_BAD is an _IO_off64_t value indicating error, unknown, or EOF. */

	Jakub

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2007-03-30 11:41 [PATCH] __THROW in libio revisited Jakub Jelinek

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