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-rw-r--r--contrib/libio/ioextend.cc132
1 files changed, 0 insertions, 132 deletions
diff --git a/contrib/libio/ioextend.cc b/contrib/libio/ioextend.cc
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--- a/contrib/libio/ioextend.cc
+++ /dev/null
@@ -1,132 +0,0 @@
-/*
-Copyright (C) 1993 Free Software Foundation
-
-This file is part of the GNU IO Library. This library 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.
-
-This library 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 library; see the file COPYING. If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
-As a special exception, if you link this library with files
-compiled with a GNU compiler to produce an executable, this does not cause
-the resulting executable to be covered by the GNU General Public License.
-This exception does not however invalidate any other reasons why
-the executable file might be covered by the GNU General Public License. */
-
-#include <iostream.h>
-
-static int __xalloc = 0;
-
-int ios::xalloc()
-{
- return __xalloc++;
-}
-
-static ios::fmtflags __used_fmt_flags
-= ios::skipws | ios::left | ios::right | ios::internal
-| ios::dec | ios::oct | ios::hex | ios::showbase | ios::showpoint
-| ios::uppercase | ios::showpos | ios::scientific | ios::fixed
-#ifndef _IO_NEW_STREAMS
-| ios::dont_close
-#endif
-| ios::unitbuf | ios::stdio;
-
-ios::fmtflags ios::bitalloc()
-{
- fmtflags bit_to_try = (fmtflags)1;
- for (; bit_to_try; bit_to_try <<= 1)
- {
- if ((__used_fmt_flags & bit_to_try) == 0)
- {
- __used_fmt_flags |= bit_to_try;
- return bit_to_try;
- }
- }
- return 0;
-}
-
-// NOTE: This implementation of ios::iword and ios::pword assumes
-// that these methods are seldom used, so we want to minimize
-// the space and time overhead when NOT using these methods.
-//
-// ANSI specifies two conceptually-infinite arrays, one whose
-// elements are longs, and one whose elements are (void*)s.
-// We implement this as a single array, each of whose element is
-// a (struct ptr_and_long), which has space for both a long and a void*.
-// We also specify that (the i field of) the 0'th element of the array
-// contains the allocated length of the array (not counting that
-// initial element).
-
-struct ptr_and_long {
- void *p;
- long i;
-};
-
-static struct ptr_and_long&
-get_array_element(ios& io, int index)
-{
- if (index < 0)
- io._throw_failure();
- register struct ptr_and_long *array = (ptr_and_long*)io._arrays;
- int old_length = array == NULL ? 0 : array[0].i;
- if (index >= old_length)
- {
- register int i;
- int new_length = index + 10;
- register struct ptr_and_long *new_array
- = new ptr_and_long[1 + new_length];
- if (array != NULL)
- {
- for (i = 1; i <= old_length; i++)
- new_array[i] = array[i];
- delete [] array;
- }
- for (i = old_length + 1; i <= new_length; i++)
- {
- new_array[i].i = 0;
- new_array[i].p = NULL;
- }
- new_array[0].i = new_length;
- new_array[0].p = NULL;
- io._arrays = (void*)new_array;
- array = new_array;
- }
- return array[index+1];
-}
-
-long& ios::iword(int index)
-{
- return get_array_element(*this, index).i;
-}
-
-void*& ios::pword(int index)
-{
- return get_array_element(*this, index).p;
-}
-
-long ios::iword(int index) const
-{
- if (index < 0)
- _throw_failure();
- register struct ptr_and_long *pl_array = (ptr_and_long*)_arrays;
- int len = pl_array == NULL ? 0 : pl_array[0].i;
- return index >= len ? 0 : pl_array[index+1].i;
-}
-
-void* ios::pword(int index) const
-{
- if (index < 0)
- _throw_failure();
- register struct ptr_and_long *pl_array = (ptr_and_long*)_arrays;
- int len = pl_array == NULL ? 0 : pl_array[0].i;
- return index >= len ? 0 : pl_array[index+1].p;
-}
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