[WIP] one small fix (#207)

* one small fix

Signed-off-by: raver119 <raver119@gmail.com>

* assert added

Signed-off-by: raver119 <raver119@gmail.com>

nd4j/nd4j-backends/nd4j-backend-impls/nd4j-cuda/src/main/java/org/nd4j/linalg/jcublas/buffer/BaseCudaDataBuffer.java

@@ -1050,21 +1050,33 @@ public abstract class BaseCudaDataBuffer extends BaseDataBuffer implements JCuda
 
     @Override
     public void setData(int[] data) {
+        if (data.length == 0)
+            return;
+
         set(data, data.length, 0, 0);
     }
 
     @Override
     public void setData(long[] data) {
+        if (data.length == 0)
+            return;
+
         set(data, data.length, 0, 0);
     }
 
     @Override
     public void setData(float[] data) {
+        if (data.length == 0)
+            return;
+
         set(data, data.length, 0, 0);
     }
 
     @Override
     public void setData(double[] data) {
+        if (data.length == 0)
+            return;
+
         set(data, data.length, 0, 0);
     }
 

nd4j/nd4j-backends/nd4j-backend-impls/nd4j-cuda/src/main/java/org/nd4j/nativeblas/Nd4jCuda.java

@@ -3804,7 +3804,6 @@ public native @Cast("bool") boolean isOptimalRequirementsMet();
         public NDArray(Pointer buffer, byte order, @Cast("Nd4jLong*") @StdVector long[] shape,  @Cast("nd4j::DataType") int dtype) { super((Pointer)null); allocate(buffer, order, shape, dtype); }
         private native void allocate(Pointer buffer, byte order, @Cast("Nd4jLong*") @StdVector long[] shape,  @Cast("nd4j::DataType") int dtype);
 
-
         /**
         * This method returns new array with the same shape & data type
         * @return

nd4j/nd4j-backends/nd4j-backend-impls/nd4j-native/src/main/java/org/nd4j/nativeblas/Nd4jCpu.java

@@ -3807,7 +3807,6 @@ public native @Cast("bool") boolean isOptimalRequirementsMet();
         public NDArray(Pointer buffer, byte order, @Cast("Nd4jLong*") @StdVector long[] shape,  @Cast("nd4j::DataType") int dtype) { super((Pointer)null); allocate(buffer, order, shape, dtype); }
         private native void allocate(Pointer buffer, byte order, @Cast("Nd4jLong*") @StdVector long[] shape,  @Cast("nd4j::DataType") int dtype);
 
-
         /**
         * This method returns new array with the same shape & data type
         * @return

nd4j/nd4j-backends/nd4j-tests/src/test/java/org/nd4j/linalg/shape/EmptyTests.java

@@ -320,6 +320,12 @@ public class EmptyTests extends BaseNd4jTest {
         Nd4j.exec(op);
     }
 
+    @Test
+    public void testEmptyConstructor_1() {
+        val x = Nd4j.create(new double[0]);
+        assertTrue(x.isEmpty());
+    }
+
     @Override
     public char ordering() {
         return 'c';