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, 7 insertions, 7 deletions

diff --git a/libio/iogetline.c b/libio/iogetline.c
index 119b7862af..8deeacee08 100644
--- a/libio/iogetline.c
+++ b/libio/iogetline.c
@@ -27,8 +27,8 @@
 #include "libioP.h"
 #include <string.h>
 
-_IO_size_t
-_IO_getline (_IO_FILE *fp, char *buf, _IO_size_t n, int delim,
+size_t
+_IO_getline (FILE *fp, char *buf, size_t n, int delim,
 	     int extract_delim)
 {
   return _IO_getline_info (fp, buf, n, delim, extract_delim, (int *) 0);
@@ -43,8 +43,8 @@ libc_hidden_def (_IO_getline)
    If extract_delim < 0, leave delimiter unread.
    If extract_delim > 0, insert delim in output. */
 
-_IO_size_t
-_IO_getline_info (_IO_FILE *fp, char *buf, _IO_size_t n, int delim,
+size_t
+_IO_getline_info (FILE *fp, char *buf, size_t n, int delim,
 		  int extract_delim, int *eof)
 {
   char *ptr = buf;
@@ -54,7 +54,7 @@ _IO_getline_info (_IO_FILE *fp, char *buf, _IO_size_t n, int delim,
     _IO_fwide (fp, -1);
   while (n != 0)
     {
-      _IO_ssize_t len = fp->_IO_read_end - fp->_IO_read_ptr;
+      ssize_t len = fp->_IO_read_end - fp->_IO_read_ptr;
       if (len <= 0)
 	{
 	  int c = __uflow (fp);
@@ -80,12 +80,12 @@ _IO_getline_info (_IO_FILE *fp, char *buf, _IO_size_t n, int delim,
       else
 	{
 	  char *t;
-	  if ((_IO_size_t) len >= n)
+	  if ((size_t) len >= n)
 	    len = n;
 	  t = (char *) memchr ((void *) fp->_IO_read_ptr, delim, len);
 	  if (t != NULL)
 	    {
-	      _IO_size_t old_len = ptr-buf;
+	      size_t old_len = ptr-buf;
 	      len = t - fp->_IO_read_ptr;
 	      if (extract_delim >= 0)
 		{