prims.cc (_Jv_NewObjectArray): Use palcement new to create array.

	* prims.cc (_Jv_NewObjectArray): Use palcement new to create
	array.
	(_Jv_NewPrimArray): Likewise.
	Include <new>.
	* gcj/array.h (__JArray): `length' field now const.  Added
	constructor.
	(class JArray): Added constructor.

From-SVN: r37718

1 files changed, 8 insertions, 3 deletions

diff --git a/libjava/prims.cc b/libjava/prims.cc
index 8ca05da3905..22fa4b64070 100644
--- a/libjava/prims.cc
+++ b/libjava/prims.cc
@@ -67,6 +67,9 @@ details.  */
 #include <ltdl.h>
 #endif
 
+// We use placement new.
+#include <new>
+
 // We allocate a single OutOfMemoryError exception which we keep
 // around for use if we run out of memory.
 static java::lang::OutOfMemoryError *no_memory;
@@ -411,8 +414,9 @@ _Jv_NewObjectArray (jsize count, jclass elementClass, jobject init)
   obj = (jobjectArray) _Jv_AllocArray (size, klass);
   if (__builtin_expect (! obj, false))
     JvThrow (no_memory);
-  obj->length = count;
-  jobject* ptr = elements(obj);
+  // Use placement new to initialize length field.
+  new (obj) __JArray (count);
+  jobject *ptr = elements(obj);
   // We know the allocator returns zeroed memory.  So don't bother
   // zeroing it again.
   if (init)
@@ -446,7 +450,8 @@ _Jv_NewPrimArray (jclass eltype, jint count)
   __JArray *arr = (__JArray*) _Jv_AllocObj (size + elsize * count, klass);
   if (__builtin_expect (! arr, false))
     JvThrow (no_memory);
-  arr->length = count;
+  // Use placement new to initialize length field.
+  new (arr) __JArray (count);
   // Note that we assume we are given zeroed memory by the allocator.
 
   return arr;