1 files changed, 133 insertions, 0 deletions
diff --git a/gnu/lib/libg++/libio/strstream.cc b/gnu/lib/libg++/libio/strstream.cc
new file mode 100644
index 0000000..c17d683
--- /dev/null
+++ b/gnu/lib/libg++/libio/strstream.cc
@@ -0,0 +1,133 @@
+/* This is part of libio/iostream, providing -*- C++ -*- input/output.
+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 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). */
+
+#ifdef __GNUG__
+#pragma implementation
+#endif
+#include "iostreamP.h"
+#include "strstream.h"
+#include <string.h>
+
+static void* default_alloc(_IO_size_t size)
+{
+    return (void*)new char[size];
+}
+
+static void default_free(void* ptr)
+{
+    delete [] (char*)ptr;
+}
+
+/* Set to use the _IO_str_jump jumptable, for efficiency */
+
+#define SET_STR_JUMPS(STRBUF) \
+  (STRBUF)->_jumps = &_IO_str_jumps,\
+  (STRBUF)->_vtable() = builtinbuf_vtable;
+
+istrstream::istrstream(const char *cp, int n)
+{
+  init(new strstreambuf(cp, n));
+  SET_STR_JUMPS(_strbuf);
+}
+
+ostrstream::ostrstream()
+{
+  init(new strstreambuf());
+  SET_STR_JUMPS(_strbuf);
+}
+
+strstreambase::strstreambase(char *cp, int n, int mode)
+{
+  char *pstart;
+  if (mode == ios::app || mode == ios::ate)
+    pstart = cp + strlen(cp);
+  else
+    pstart = cp;
+  init(new strstreambuf(cp, n, pstart));
+  SET_STR_JUMPS(_strbuf);
+}
+
+char *strstreambuf::str()
+{
+    freeze(1);
+    return base();
+}
+
+_IO_ssize_t strstreambuf::pcount() { return _IO_str_count (this); }
+
+int strstreambuf::overflow(int c /* = EOF */)
+{
+  return _IO_str_overflow (this, c);
+}
+
+int strstreambuf::underflow()
+{
+  return _IO_str_underflow(this);
+}
+
+
+void strstreambuf::init_dynamic(_IO_alloc_type alloc, _IO_free_type free,
+				int initial_size)
+				
+{
+    _s._len = 0;
+    if (initial_size < 16)
+	initial_size = 16;
+    _s._allocate_buffer = alloc ? alloc : default_alloc;
+    _s._free_buffer = free ? free : default_free;
+    char * buf = (char*)(*_s._allocate_buffer)(initial_size);
+    setb(buf, buf + initial_size, 1);
+    setp(buf, buf + initial_size);
+    setg(buf, buf, buf);
+}
+
+void strstreambuf::init_static(char *ptr, int size, char *pstart)
+{
+  _IO_str_init_static (this, ptr, size, pstart);
+}
+
+void strstreambuf::init_readonly (const char *ptr, int size)
+{
+  _IO_str_init_readonly (this, ptr, size);
+}
+
+strstreambuf::~strstreambuf()
+{
+    if (_IO_buf_base && !(_flags & _IO_USER_BUF))
+        (_s._free_buffer)(_IO_buf_base);
+    _IO_buf_base = NULL;
+}
+
+streampos strstreambuf::seekoff(streamoff off, _seek_dir dir,
+					int mode /*=ios::in|ios::out*/)
+{
+  return _IO_str_seekoff (this, off, convert_to_seekflags(dir, mode));
+}
+
+int strstreambuf::pbackfail(int c)
+{
+  return _IO_str_pbackfail (this, c);
+}