src/share/vm/memory/heap.cpp

rev 7793 : 8073315: Enable gcc -Wtype-limits and fix upcoming issues.
Summary: Relevant fixes in blockOffsetTable.cpp, os_linux.cpp, parCardTableModRefBS.cpp.

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.

@@ -50,22 +50,22 @@
   _was_full                     = false;
 }
 
 
 void CodeHeap::mark_segmap_as_free(size_t beg, size_t end) {
-  assert(0   <= beg && beg <  _number_of_committed_segments, "interval begin out of bounds");
+  assert(              beg <  _number_of_committed_segments, "interval begin out of bounds");
   assert(beg <  end && end <= _number_of_committed_segments, "interval end   out of bounds");
   // setup _segmap pointers for faster indexing
   address p = (address)_segmap.low() + beg;
   address q = (address)_segmap.low() + end;
   // initialize interval
   while (p < q) *p++ = free_sentinel;
 }
 
 
 void CodeHeap::mark_segmap_as_used(size_t beg, size_t end) {
-  assert(0   <= beg && beg <  _number_of_committed_segments, "interval begin out of bounds");
+  assert(              beg <  _number_of_committed_segments, "interval begin out of bounds");
   assert(beg <  end && end <= _number_of_committed_segments, "interval end   out of bounds");
   // setup _segmap pointers for faster indexing
   address p = (address)_segmap.low() + beg;
   address q = (address)_segmap.low() + end;
   // initialize interval