diff --git a/src/block.cc b/src/block.cc
index 8ad4f19..a351545 100644
--- a/src/block.cc
+++ b/src/block.cc
@@ -32,7 +32,6 @@ namespace MultiArrayHelper
 	static OpFunc f;
 	if(mRes.size() == 0) { mRes.assign(arg.size(), static_cast<T>(0)); }
 	assert(mRes.size() == arg.size());
-	VCHECK(arg);
 	for(size_t i = 0; i != arg.size(); ++i){
 	    mRes[i] = f(mRes[i], arg[i]);
 	}
diff --git a/src/multi_array_operation.cc b/src/multi_array_operation.cc
index 54bee2c..bad3d9f 100644
--- a/src/multi_array_operation.cc
+++ b/src/multi_array_operation.cc
@@ -357,7 +357,6 @@ namespace MultiArrayTools
     {
 	BlockBinaryOpSelf<T,std::plus<T>,decltype(mOp.get())> f(mRes);
 	for(*mInd = 0; mInd->pos() != mInd->max(); ++(*mInd)){
-	    VCHECK(mInd->pos());
 	    f(mOp.get());
 	}
 	return mRes;
diff --git a/src/op_unit_test.cc b/src/op_unit_test.cc
index 5c38d68..8910828 100644
--- a/src/op_unit_test.cc
+++ b/src/op_unit_test.cc
@@ -182,9 +182,9 @@ namespace {
 	std::cout << "MultiArray time: " << static_cast<double>( end - begin ) / CLOCKS_PER_SEC
 		  << std::endl;
 
+	std::vector<double> res2(vs1*vs2);
 	std::clock_t begin2 = std::clock();
 	
-	std::vector<double> res2(vs1*vs2);
 	for(size_t i = 0; i != vs2; ++i){
 	    for(size_t j = 0; j != vs1; ++j){
 		res2[i*vs1 + j] = cv1[j] * cv2[i*vs1 + j];