Michael Reifenberger's libg++ port

Submitted by:	mr

2 files changed, 157 insertions, 0 deletions

diff --git a/gnu/lib/libg++/libio/ioassign.cc b/gnu/lib/libg++/libio/ioassign.cc
new file mode 100644
index 0000000..5441ae7
--- /dev/null
+++ b/gnu/lib/libg++/libio/ioassign.cc
@@ -0,0 +1,55 @@
+/* This is part of libio/iostream, providing -*- C++ -*- input/output.
+Copyright (C) 1994 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 GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, 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. */
+
+/* Written by Per Bothner (bothner@cygnus.com). */
+
+#include <iostream.h>
+#include "libioP.h"
+
+// These method are provided for backward compatibility reasons.
+// It's generally poor style to use them.
+// They are not supported by the ANSI/ISO working paper.
+
+_IO_istream_withassign&  _IO_istream_withassign::operator=(istream& rhs)
+{
+  if (&rhs != (istream*)this)
+    {
+      if (!(_flags & (unsigned int)ios::dont_close)) delete rdbuf();
+      init (rhs.rdbuf ());
+      _flags |= ios::dont_close;
+      _gcount = 0;
+    }
+  return *this;
+}
+
+_IO_ostream_withassign&  _IO_ostream_withassign::operator=(ostream& rhs)
+{
+  if (&rhs != (ostream*)this)
+    {
+      if (!(_flags & (unsigned int)ios::dont_close)) delete rdbuf();
+      init (rhs.rdbuf ());
+      _flags |= ios::dont_close;
+    }
+  return *this;
+}
diff --git a/gnu/lib/libg++/libio/iogetdelim.c b/gnu/lib/libg++/libio/iogetdelim.c
new file mode 100644
index 0000000..3dc5cd1
--- /dev/null
+++ b/gnu/lib/libg++/libio/iogetdelim.c
@@ -0,0 +1,102 @@
+/* 
+Copyright (C) 1994 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 GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, 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. */
+
+#ifdef __STDC__
+#include <stdlib.h>
+#endif
+#include "libioP.h"
+#include <string.h>
+#include <errno.h>
+
+/* Read up to (and including) a TERMINATOR from FP into *LINEPTR
+   (and null-terminate it).  *LINEPTR is a pointer returned from malloc (or
+   NULL), pointing to *N characters of space.  It is realloc'ed as
+   necessary.  Returns the number of characters read (not including the
+   null terminator), or -1 on error or EOF.  */
+
+_IO_ssize_t
+_IO_getdelim (lineptr, n, delimiter, fp)
+     char **lineptr;
+     _IO_size_t *n;
+     int delimiter;
+     _IO_FILE *fp;
+{
+  register _IO_ssize_t cur_len = 0;
+  _IO_ssize_t len;
+
+  if (lineptr == NULL || n == NULL)
+    {
+#ifdef EINVAL
+      errno = EINVAL;
+#endif
+      return -1;
+    }
+  CHECK_FILE (fp, -1);
+  if (_IO_ferror (fp))
+    return -1;
+
+  if (*lineptr == NULL || *n == 0)
+    {
+      *n = 120;
+      *lineptr = (char *) malloc (*n);
+      if (*lineptr == NULL)
+	return -1;
+    }
+
+  len = fp->_IO_read_end - fp->_IO_read_ptr;
+  if (len <= 0)
+    {
+      if (__underflow (fp) == EOF)
+	return -1;
+      len = fp->_IO_read_end - fp->_IO_read_ptr;
+    }
+
+  for (;;)
+    {
+      _IO_size_t needed;
+      char *t;
+      t = (char *) memchr ((void *) fp->_IO_read_ptr, delimiter, len);
+      if (t != NULL)
+	len = (t - fp->_IO_read_ptr) + 1;
+      /* make enough space for len+1 (for final NUL) bytes. */
+      needed = cur_len + len + 1;
+      if (needed > *n)
+	{
+	  if (t == NULL && needed < 2 * *n)
+	    needed = 2 * *n;  /* Be generous. */
+	  *n = needed;
+	  *lineptr = (char *) realloc (*lineptr, needed);
+	  if (*lineptr == NULL)
+	    return -1;
+	}
+      memcpy (*lineptr + cur_len, (void *) fp->_IO_read_ptr, len);
+      fp->_IO_read_ptr += len;
+      cur_len += len;
+      if (t != NULL || __underflow (fp) == EOF)
+	break;
+      len = fp->_IO_read_end - fp->_IO_read_ptr;
+    }
+  lineptr[cur_len] = '\0';
+  return cur_len;
+}