initial import of NetBSD tree

1 files changed, 201 insertions, 0 deletions

diff --git a/gnu/lib/libg++/g++-include/gen/OSLBag.ccP b/gnu/lib/libg++/g++-include/gen/OSLBag.ccP
new file mode 100644
index 00000000000..79c95cbe515
--- /dev/null
+++ b/gnu/lib/libg++/g++-include/gen/OSLBag.ccP
@@ -0,0 +1,201 @@
+// This may look like C code, but it is really -*- C++ -*-
+/* 
+Copyright (C) 1988 Free Software Foundation
+    written by Doug Lea (dl@rocky.oswego.edu)
+
+This file is part of GNU CC.
+
+GNU CC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY.  No author or distributor
+accepts responsibility to anyone for the consequences of using it
+or for whether it serves any particular purpose or works at all,
+unless he says so in writing.  Refer to the GNU CC General Public
+License for full details.
+
+Everyone is granted permission to copy, modify and redistribute
+GNU CC, but only under the conditions described in the
+GNU CC General Public License.   A copy of this license is
+supposed to have been given to you along with GNU CC so you
+can know your rights and responsibilities.  It should be in a
+file named COPYING.  Among other things, the copyright notice
+and this notice must be preserved on all copies.  
+*/
+
+#ifdef __GNUG__
+#pragma implementation
+#endif
+#include "<T>.OSLBag.h"
+
+
+Pix <T>OSLBag::seek(<T&> item, Pix i)
+{
+  if (i == 0) i = p.first(); else next(i);
+  for (; i != 0; p.next(i))
+  {
+    int cmp = <T>CMP(item, p(i));
+    if (cmp == 0)
+      return i;
+    else if (cmp < 0)
+      return 0;
+  }
+  return 0;
+}
+
+int <T>OSLBag::nof(<T&> item)
+{
+  int n = 0;
+  for (Pix i = p.first(); i != 0; p.next(i))
+  {
+    int cmp = <T>CMP(item, p(i));
+    if (cmp == 0)
+      ++n;
+    else if (cmp < 0)
+      break;
+  }
+  return n;
+}
+
+Pix <T>OSLBag::add(<T&> item)
+{
+  Pix i = p.first();
+  if (i == 0) 
+  {
+    ++count;
+    return p.prepend(item);
+  }
+  int cmp = <T>CMP(item, p(i));
+  if (cmp <= 0)
+  {
+    ++count;
+    return p.prepend(item);
+  }
+  else
+  {
+    Pix trail = i;
+    p.next(i);
+    for (;;)
+    {
+      if (i == 0)
+      {
+        ++count;
+        return p.append(item);
+      }
+      cmp = <T>CMP(item, p(i));
+      if (cmp <= 0)
+      {
+        ++count;
+        return p.ins_after(trail, item);
+      }
+      else
+      {
+        trail = i;
+        p.next(i);
+      }
+    }
+  }
+}
+
+void <T>OSLBag::del(<T&> item)
+{
+  Pix i = p.first();
+  if (i == 0)
+    return;
+  int cmp = <T>CMP(item, p(i));
+  if (cmp < 0)
+    return;
+  else if (cmp == 0)
+  {
+    --count;
+    p.del_front();
+  }
+  else
+  {
+    Pix trail = i;
+    p.next(i);
+    while (i != 0)
+    {
+      cmp = <T>CMP(item, p(i));
+      if (cmp < 0)
+        return;
+      else if (cmp == 0)
+      {
+        --count;
+        p.del_after(trail);
+        return;
+      }
+      else
+      {
+        trail = i;
+        p.next(i);
+      }
+    }
+  }
+}
+
+void <T>OSLBag::remove(<T&> item)
+{
+  Pix i = p.first();
+  if (i == 0)
+    return;
+  int cmp = <T>CMP(item, p(i));
+  if (cmp < 0)
+    return;
+  else if (cmp == 0)
+  {
+    do
+    {
+      --count;
+      p.del_front();
+      i = p.first();
+    } while (i != 0 && <T>EQ(item, p(i)));
+  }
+  else
+  {
+    Pix trail = i;
+    p.next(i);
+    while (i != 0)
+    {
+      cmp = <T>CMP(item, p(i));
+      if (cmp < 0)
+        return;
+      else if (cmp == 0)
+      {
+        do
+        {
+          --count;
+          p.del_after(trail);
+          i = trail;
+          next(i);
+        } while (i != 0 && <T>EQ(item, p(i)));
+        return;
+      }
+      else
+      {
+        trail = i;
+        p.next(i);
+      }
+    }
+  }
+}
+        
+int <T>OSLBag::OK()
+{
+  int v = p.OK();
+  v &= count == p.length();
+  Pix trail = p.first();
+  if (trail == 0)
+    v &= count == 0;
+  else
+  {
+    Pix i = trail; next(i);
+    while (i != 0)
+    {
+      v &= <T>CMP(p(trail), p(i)) <= 0;
+      trail = i;
+      next(i);
+    }
+  }
+  if (!v) error("invariant failure");
+  return v;
+}
+