Initial revision

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@14877 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 514 insertions, 0 deletions

diff --git a/libstdc++/std/bastring.cc b/libstdc++/std/bastring.cc
new file mode 100644
index 00000000000..155656ae5d0
--- /dev/null
+++ b/libstdc++/std/bastring.cc
@@ -0,0 +1,514 @@
+// Member templates for the -*- C++ -*- string classes.
+// Copyright (C) 1994 Free Software Foundation
+
+// This file is part of the GNU ANSI C++ 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.
+
+// Written by Jason Merrill based upon the specification by Takanori Adachi
+// in ANSI X3J16/94-0013R2.
+
+#include <cstddef>
+#include <std/bastring.h>
+
+extern "C++" {
+template <class charT, class traits>
+inline void * basic_string <charT, traits>::Rep::
+operator new (size_t s, size_t extra)
+{
+  return ::operator new (s + extra * sizeof (charT));
+}
+
+template <class charT, class traits>
+inline size_t basic_string <charT, traits>::Rep::
+#if _G_ALLOC_CONTROL
+default_frob (size_t s)
+#else
+frob_size (size_t s)
+#endif
+{
+  size_t i = 16;
+  while (i < s) i *= 2;
+  return i;
+}
+
+template <class charT, class traits>
+inline basic_string <charT, traits>::Rep * basic_string <charT, traits>::Rep::
+create (size_t extra)
+{
+  extra = frob_size (extra + 1);
+  Rep *p = new (extra) Rep;
+  p->res = extra;
+  p->ref = 1;
+  p->selfish = false;
+  return p;
+}
+
+template <class charT, class traits>
+charT * basic_string <charT, traits>::Rep::
+clone ()
+{
+  Rep *p = Rep::create (len);
+  p->copy (0, data (), len);
+  p->len = len;
+  return p->data ();
+}
+
+template <class charT, class traits>
+inline bool basic_string <charT, traits>::Rep::
+#ifdef _G_ALLOC_CONTROL
+default_excess (size_t s, size_t r)
+#else
+excess_slop (size_t s, size_t r)
+#endif
+{
+  return 2 * (s <= 16 ? 16 : s) < r;
+}
+
+template <class charT, class traits>
+inline bool basic_string <charT, traits>::
+check_realloc (size_t s) const
+{
+  s += sizeof (charT);
+  return (rep ()->ref > 1
+	  || s > capacity ()
+	  || Rep::excess_slop (s, capacity ()));
+}
+
+template <class charT, class traits>
+void basic_string <charT, traits>::
+alloc (size_t size, bool save)
+{
+  if (! check_realloc (size))
+    return;
+
+  Rep *p = Rep::create (size);
+
+  if (save)
+    {
+      p->copy (0, data (), length ());
+      p->len = length ();
+    }
+  else
+    p->len = 0;
+
+  repup (p);
+}
+
+template <class charT, class traits>
+basic_string <charT, traits>& basic_string <charT, traits>::
+replace (size_t pos1, size_t n1,
+	 const basic_string& str, size_t pos2, size_t n2)
+{
+  const size_t len2 = str.length ();
+
+  if (pos1 == 0 && n1 >= length () && pos2 == 0 && n2 >= len2)
+    return operator= (str);
+
+  OUTOFRANGE (pos2 > len2);
+
+  if (n2 > len2 - pos2)
+    n2 = len2 - pos2;
+
+  return replace (pos1, n1, str.data () + pos2, n2);
+}
+
+template <class charT, class traits>
+inline void basic_string <charT, traits>::Rep::
+copy (size_t pos, const charT *s, size_t n)
+{
+  if (n)
+    traits::copy (data () + pos, s, n);
+}
+
+template <class charT, class traits>
+inline void basic_string <charT, traits>::Rep::
+move (size_t pos, const charT *s, size_t n)
+{
+  if (n)
+    traits::move (data () + pos, s, n);
+}
+
+template <class charT, class traits>
+basic_string <charT, traits>& basic_string <charT, traits>::
+replace (size_t pos, size_t n1, const charT* s, size_t n2)
+{
+  const size_t len = length ();
+  OUTOFRANGE (pos > len);
+  if (n1 > len - pos)
+    n1 = len - pos;
+  LENGTHERROR (len - n1 > max_size () - n2);
+  size_t newlen = len - n1 + n2;
+
+  if (check_realloc (newlen))
+    {
+      Rep *p = Rep::create (newlen);
+      p->copy (0, data (), pos);
+      p->copy (pos + n2, data () + pos + n1, len - (pos + n1));
+      p->copy (pos, s, n2);
+      repup (p);
+    }
+  else
+    {
+      rep ()->move (pos + n2, data () + pos + n1, len - (pos + n1));
+      rep ()->copy (pos, s, n2);
+    }
+  rep ()->len = newlen;
+
+  return *this;
+}
+
+template <class charT, class traits>
+inline void basic_string <charT, traits>::Rep::
+set (size_t pos, const charT c, size_t n)
+{
+  traits::set  (data () + pos, c, n);
+}
+
+template <class charT, class traits>
+basic_string <charT, traits>& basic_string <charT, traits>::
+replace (size_t pos, size_t n1, size_t n2, charT c)
+{
+  const size_t len = length ();
+  OUTOFRANGE (pos > len);
+  if (n1 > len - pos)
+    n1 = len - pos;
+  LENGTHERROR (len - n1 > max_size () - n2);
+  size_t newlen = len - n1 + n2;
+
+  if (check_realloc (newlen))
+    {
+      Rep *p = Rep::create (newlen);
+      p->copy (0, data (), pos);
+      p->copy (pos + n2, data () + pos + n1, len - (pos + n1));
+      p->set  (pos, c, n2);
+      repup (p);
+    }
+  else
+    {
+      rep ()->move (pos + n2, data () + pos + n1, len - (pos + n1));
+      rep ()->set  (pos, c, n2);
+    }
+  rep ()->len = newlen;
+
+  return *this;
+}
+
+template <class charT, class traits>
+void basic_string <charT, traits>::
+resize (size_t n, charT c)
+{
+  LENGTHERROR (n > max_size ());
+
+  if (n > length ())
+    append (n - length (), c);
+  else
+    remove (n);
+}
+
+template <class charT, class traits>
+size_t basic_string <charT, traits>::
+copy (charT* s, size_t n, size_t pos)
+{
+  OUTOFRANGE (pos > length ());
+
+  if (n > length () - pos)
+    n = length () - pos;
+
+  traits::copy (s, data () + pos, n);
+  return n;
+}
+
+template <class charT, class traits>
+size_t basic_string <charT, traits>::
+find (const charT* s, size_t pos, size_t n) const
+{
+  size_t xpos = pos;
+  for (; xpos + n <= length (); ++xpos)
+    if (traits::eq (data () [xpos], *s)
+	&& traits::compare (data () + xpos, s, n) == 0)
+      return xpos;
+  return npos;
+}
+
+template <class charT, class traits>
+inline size_t basic_string <charT, traits>::
+_find (const charT* ptr, charT c, size_t xpos, size_t len)
+{
+  for (; xpos < len; ++xpos)
+    if (traits::eq (ptr [xpos], c))
+      return xpos;
+  return npos;
+}
+
+template <class charT, class traits>
+size_t basic_string <charT, traits>::
+find (charT c, size_t pos) const
+{
+  return _find (data (), c, pos, length ());
+}
+
+template <class charT, class traits>
+size_t basic_string <charT, traits>::
+rfind (const charT* s, size_t pos, size_t n) const
+{
+  if (n > length ())
+    return npos;
+
+  size_t xpos = length () - n;
+  if (xpos > pos)
+    xpos = pos;
+
+  for (++xpos; xpos-- > 0; )
+    if (traits::eq (data () [xpos], *s)
+	&& traits::compare (data () + xpos, s, n) == 0)
+      return xpos;
+  return npos;
+}
+
+template <class charT, class traits>
+size_t basic_string <charT, traits>::
+rfind (charT c, size_t pos) const
+{
+  if (1 > length ())
+    return npos;
+
+  size_t xpos = length () - 1;
+  if (xpos > pos)
+    xpos = pos;
+
+  for (++xpos; xpos-- > 0; )
+    if (traits::eq (data () [xpos], c))
+      return xpos;
+  return npos;
+}
+
+template <class charT, class traits>
+size_t basic_string <charT, traits>::
+find_first_of (const charT* s, size_t pos, size_t n) const
+{
+  size_t xpos = pos;
+  for (; xpos < length (); ++xpos)
+    if (_find (s, data () [xpos], 0, n) != npos)
+      return xpos;
+  return npos;
+}
+
+template <class charT, class traits>
+size_t basic_string <charT, traits>::
+find_last_of (const charT* s, size_t pos, size_t n) const
+{
+  size_t xpos = length () - 1;
+  if (xpos > pos)
+    xpos = pos;
+  for (; xpos; --xpos)
+    if (_find (s, data () [xpos], 0, n) != npos)
+      return xpos;
+  return npos;
+}
+
+template <class charT, class traits>
+size_t basic_string <charT, traits>::
+find_first_not_of (const charT* s, size_t pos, size_t n) const
+{
+  size_t xpos = pos;
+  for (; xpos < length (); ++xpos)
+    if (_find (s, data () [xpos], 0, n) == npos)
+      return xpos;
+  return npos;
+}
+
+template <class charT, class traits>
+size_t basic_string <charT, traits>::
+find_first_not_of (charT c, size_t pos) const
+{
+  size_t xpos = pos;
+  for (; xpos < length (); ++xpos)
+    if (traits::ne (data () [xpos], c))
+      return xpos;
+  return npos;
+}
+
+template <class charT, class traits>
+size_t basic_string <charT, traits>::
+find_last_not_of (const charT* s, size_t pos, size_t n) const
+{
+  size_t xpos = length () - 1;
+  if (xpos > pos)
+    xpos = pos;
+  for (; xpos; --xpos)
+    if (_find (s, data () [xpos], 0, n) == npos)
+      return xpos;
+  return npos;
+}
+
+template <class charT, class traits>
+size_t basic_string <charT, traits>::
+find_last_not_of (charT c, size_t pos) const
+{
+  size_t xpos = length () - 1;
+  if (xpos > pos)
+    xpos = pos;
+  for (; xpos; --xpos)
+    if (traits::ne (data () [xpos], c))
+      return xpos;
+  return npos;
+}
+
+template <class charT, class traits>
+int basic_string <charT, traits>::
+compare (const basic_string& str, size_t pos, size_t n) const
+{
+  OUTOFRANGE (pos > length ());
+
+  size_t rlen = length () - pos;
+  if (rlen > n)
+    rlen = n;
+  if (rlen > str.length ())
+    rlen = str.length ();
+  int r = traits::compare (data () + pos, str.data (), rlen);
+  if (r != 0)
+    return r;
+  if (rlen == n)
+    return 0;
+  return (length () - pos) - str.length ();
+}
+
+template <class charT, class traits>
+int basic_string <charT, traits>::
+compare (const charT* s, size_t pos, size_t n) const
+{
+  OUTOFRANGE (pos > length ());
+
+  size_t rlen = length () - pos;
+  if (rlen > n)
+    rlen = n;
+  int r = traits::compare (data () + pos, s, rlen);
+  if (r != 0)
+    return r;
+  return (length () - pos) - n;
+}
+
+#include <iostream.h>
+
+template <class charT, class traits>
+istream &
+operator>> (istream &is, basic_string <charT, traits> &s)
+{
+  int w = is.width (0);
+  if (is.ipfx0 ())
+    {
+      register streambuf *sb = is.rdbuf ();
+      s.resize (0);
+      while (1)
+	{
+	  int ch = sb->sbumpc ();
+	  if (ch == EOF)
+	    {
+	      is.setstate (ios::eofbit);
+	      break;
+	    }
+	  else if (traits::is_del (ch))
+	    {
+	      sb->sungetc ();
+	      break;
+	    }
+	  s += ch;
+	  if (--w == 1)
+	    break;
+	}
+    }
+
+  is.isfx ();
+  if (s.length () == 0)
+    is.setstate (ios::failbit);
+
+  return is;
+}
+
+template <class charT, class traits>
+ostream &
+operator<< (ostream &o, const basic_string <charT, traits>& s)
+{
+  return o.write (s.data (), s.length ());
+}
+
+template <class charT, class traits>
+istream&
+getline (istream &is, basic_string <charT, traits>& s, charT delim)
+{
+  if (is.ipfx1 ())
+    {
+      _IO_size_t count = 0;
+      streambuf *sb = is.rdbuf ();
+      s.resize (0);
+
+      while (1)
+	{
+	  int ch = sb->sbumpc ();
+	  if (ch == EOF)
+	    {
+	      is.setstate (count == 0
+			   ? (ios::failbit|ios::eofbit)
+			   : ios::eofbit);
+	      break;
+	    }
+
+	  ++count;
+
+	  if (ch == delim)
+	    break;
+
+	  s += ch;
+
+	  if (s.length () == s.npos - 1)
+	    {
+	      is.setstate (ios::failbit);
+	      break;
+	    }
+	}
+    }
+
+  // We need to be friends with istream to do this.
+  // is._gcount = count;
+  is.isfx ();
+
+  return is;
+}
+
+template <class charT, class traits>
+basic_string <charT, traits>::Rep
+basic_string<charT, traits>::nilRep = { 0, 0, 1 };
+
+template <class charT, class traits>
+const basic_string <charT, traits>::size_type
+basic_string <charT, traits>::npos;
+
+#ifdef _G_ALLOC_CONTROL
+template <class charT, class traits>
+bool (*basic_string <charT, traits>::Rep::excess_slop) (size_t, size_t)
+     = basic_string <charT, traits>::Rep::default_excess;
+
+template <class charT, class traits>
+size_t (*basic_string <charT, traits>::Rep::frob_size) (size_t)
+     = basic_string <charT, traits>::Rep::default_frob;
+#endif
+
+} // extern "C++"