Mechanically remove _IO_ name aliases for types and constants.

This patch mechanically removes all remaining uses, and the
definitions, of the following libio name aliases:

 name                         replaced with
 ----                         -------------
 _IO_FILE                     FILE
 _IO_fpos_t                   __fpos_t
 _IO_fpos64_t                 __fpos64_t
 _IO_size_t                   size_t
 _IO_ssize_t                  ssize_t or __ssize_t
 _IO_off_t                    off_t
 _IO_off64_t                  off64_t
 _IO_pid_t                    pid_t
 _IO_uid_t                    uid_t
 _IO_wint_t                   wint_t
 _IO_va_list                  va_list or __gnuc_va_list
 _IO_BUFSIZ                   BUFSIZ
 _IO_cookie_io_functions_t    cookie_io_functions_t
 __io_read_fn                 cookie_read_function_t
 __io_write_fn                cookie_write_function_t
 __io_seek_fn                 cookie_seek_function_t
 __io_close_fn                cookie_close_function_t

I used __fpos_t and __fpos64_t instead of fpos_t and fpos64_t because
the definitions of fpos_t and fpos64_t depend on the largefile mode.
I used __ssize_t and __gnuc_va_list in a handful of headers where
namespace cleanliness might be relevant even though they're
internal-use-only.  In all other cases, I used the public-namespace
name.

There are a tiny handful of places where I left a use of 'struct _IO_FILE'
alone, because it was being used together with 'struct _IO_FILE_plus'
or 'struct _IO_FILE_complete' in the same arithmetic expression.

Because this patch was almost entirely done with search and replace, I
may have introduced indentation botches.  I did proofread the diff,
but I may have missed something.

The ChangeLog below calls out all of the places where this was not a
pure search-and-replace change.

Installed stripped libraries and executables are unchanged by this patch,
except that some assertions in vfscanf.c change line numbers.

	* libio/libio.h (_IO_FILE): Delete; all uses changed to FILE.
	(_IO_fpos_t): Delete; all uses changed to __fpos_t.
	(_IO_fpos64_t): Delete; all uses changed to __fpos64_t.
	(_IO_size_t): Delete; all uses changed to size_t.
	(_IO_ssize_t): Delete; all uses changed to ssize_t or __ssize_t.
	(_IO_off_t): Delete; all uses changed to off_t.
	(_IO_off64_t): Delete; all uses changed to off64_t.
	(_IO_pid_t): Delete; all uses changed to pid_t.
	(_IO_uid_t): Delete; all uses changed to uid_t.
	(_IO_wint_t): Delete; all uses changed to wint_t.
	(_IO_va_list): Delete; all uses changed to va_list or __gnuc_va_list.
	(_IO_BUFSIZ): Delete; all uses changed to BUFSIZ.
	(_IO_cookie_io_functions_t): Delete; all uses changed to
	cookie_io_functions_t.
	(__io_read_fn): Delete; all uses changed to cookie_read_function_t.
	(__io_write_fn): Delete; all uses changed to cookie_write_function_t.
	(__io_seek_fn): Delete; all uses changed to cookie_seek_function_t.
	(__io_close_fn): Delete: all uses changed to cookie_close_function_t.

	* libio/iofopncook.c: Remove unnecessary forward declarations.
	* libio/iolibio.h: Correct outdated commentary.
	* malloc/malloc.c (__malloc_stats): Remove unnecessary casts.
	* stdio-common/fxprintf.c (__fxprintf_nocancel):
	Remove unnecessary casts.
	* stdio-common/getline.c: Use _IO_getdelim directly.
	Don't redefine ssize_t.
	* stdio-common/printf_fp.c, stdio_common/printf_fphex.c
	* stdio-common/printf_size.c: Don't redefine size_t or FILE.
	Remove outdated comments.
	* stdio-common/vfscanf.c: Don't redefine va_list.

1 files changed, 10 insertions, 10 deletions

diff --git a/libio/memstream.c b/libio/memstream.c
index d86befcc02..8d2726dea3 100644
--- a/libio/memstream.c
+++ b/libio/memstream.c
@@ -25,12 +25,12 @@ struct _IO_FILE_memstream
 {
   _IO_strfile _sf;
   char **bufloc;
-  _IO_size_t *sizeloc;
+  size_t *sizeloc;
 };
 
 
-static int _IO_mem_sync (_IO_FILE* fp) __THROW;
-static void _IO_mem_finish (_IO_FILE* fp, int) __THROW;
+static int _IO_mem_sync (FILE* fp) __THROW;
+static void _IO_mem_finish (FILE* fp, int) __THROW;
 
 
 static const struct _IO_jump_t _IO_mem_jumps libio_vtable =
@@ -60,8 +60,8 @@ static const struct _IO_jump_t _IO_mem_jumps libio_vtable =
 /* Open a stream that writes into a malloc'd buffer that is expanded as
    necessary.  *BUFLOC and *SIZELOC are updated with the buffer's location
    and the number of characters written on fflush or fclose.  */
-_IO_FILE *
-__open_memstream (char **bufloc, _IO_size_t *sizeloc)
+FILE *
+__open_memstream (char **bufloc, size_t *sizeloc)
 {
   struct locked_FILE
   {
@@ -80,7 +80,7 @@ __open_memstream (char **bufloc, _IO_size_t *sizeloc)
   new_f->fp._sf._sbf._f._lock = &new_f->lock;
 #endif
 
-  buf = calloc (1, _IO_BUFSIZ);
+  buf = calloc (1, BUFSIZ);
   if (buf == NULL)
     {
       free (new_f);
@@ -88,7 +88,7 @@ __open_memstream (char **bufloc, _IO_size_t *sizeloc)
     }
   _IO_init_internal (&new_f->fp._sf._sbf._f, 0);
   _IO_JUMPS_FILE_plus (&new_f->fp._sf._sbf) = &_IO_mem_jumps;
-  _IO_str_init_static_internal (&new_f->fp._sf, buf, _IO_BUFSIZ, buf);
+  _IO_str_init_static_internal (&new_f->fp._sf, buf, BUFSIZ, buf);
   new_f->fp._sf._sbf._f._flags &= ~_IO_USER_BUF;
   new_f->fp._sf._s._allocate_buffer = (_IO_alloc_type) malloc;
   new_f->fp._sf._s._free_buffer = (_IO_free_type) free;
@@ -99,14 +99,14 @@ __open_memstream (char **bufloc, _IO_size_t *sizeloc)
   /* Disable single thread optimization.  BZ 21735.  */
   new_f->fp._sf._sbf._f._flags2 |= _IO_FLAGS2_NEED_LOCK;
 
-  return (_IO_FILE *) &new_f->fp._sf._sbf;
+  return (FILE *) &new_f->fp._sf._sbf;
 }
 libc_hidden_def (__open_memstream)
 weak_alias (__open_memstream, open_memstream)
 
 
 static int
-_IO_mem_sync (_IO_FILE *fp)
+_IO_mem_sync (FILE *fp)
 {
   struct _IO_FILE_memstream *mp = (struct _IO_FILE_memstream *) fp;
 
@@ -124,7 +124,7 @@ _IO_mem_sync (_IO_FILE *fp)
 
 
 static void
-_IO_mem_finish (_IO_FILE *fp, int dummy)
+_IO_mem_finish (FILE *fp, int dummy)
 {
   struct _IO_FILE_memstream *mp = (struct _IO_FILE_memstream *) fp;