JS implementation of isFinite.

src/runtime.cc

 // Copyright 2006-2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 7080 matching lines @@
 
 static Object* Runtime_DateDaylightSavingsOffset(Arguments args) {
   NoHandleAllocation ha;
   ASSERT(args.length() == 1);
 
   CONVERT_DOUBLE_CHECKED(x, args[0]);
   return Heap::NumberFromDouble(OS::DaylightSavingsOffset(x));
 }
 
 
-static Object* Runtime_NumberIsFinite(Arguments args) {
-  NoHandleAllocation ha;
-  ASSERT(args.length() == 1);
-
-  CONVERT_DOUBLE_CHECKED(value, args[0]);
-  Object* result;
-  if (isnan(value) || (fpclassify(value) == FP_INFINITE)) {
-    result = Heap::false_value();
-  } else {
-    result = Heap::true_value();
-  }
-  return result;
-}
-
-
 static Object* Runtime_GlobalReceiver(Arguments args) {
   ASSERT(args.length() == 1);
   Object* global = args[0];
   if (!global->IsJSGlobalObject()) return Heap::null_value();
   return JSGlobalObject::cast(global)->global_receiver();
 }
 
 
 static Object* Runtime_CompileString(Arguments args) {
   HandleScope scope;
@@ skipping 2926 matching lines @@
   } else {
     // Handle last resort GC and make sure to allow future allocations
     // to grow the heap without causing GCs (if possible).
     Counters::gc_last_resort_from_js.Increment();
     Heap::CollectAllGarbage(false);
   }
 }
 
 
 } }  // namespace v8::internal