Fixed some errors and warnings when compiling the tests on Hera

tests/arrays/arrays.cc

@@ -143,7 +143,7 @@ bool grid3d(const unsigned int& n) {
 	return status;
 }
 
-bool matrix(const unsigned int& n) {
+bool matrix(const size_t& n) {
 	cout << "Testing Matrix\n";
 	bool status=true;
 	Matrix I(n,1.); //build an n*n identity matrix

tests/dem_reading/dem_reading.cc

@@ -115,24 +115,22 @@ bool compareFiles(){
 
 	bool status=true;
 	for(int i = 0; i < n_files; i++) {
-
 		// ------ Compare reference file with generated results ---------
-		cout << " --- Start comparing reference file with output file generated before for : " << files[i] << endl;
+		cout << " --- Comparing reference file with generated output file " << files[i] << endl;
 		ifstream ifref((prefix_ref+files[i]).c_str());
 		ifstream ifout(files[i].c_str());
 		string l_ref, l_out;
 
-		while (!ifref.eof())
-		{
+		while (!ifref.eof()) {
 			if(ifout.eof()) {
-				cerr << "Not enough lines generated as result!!!" << endl;
+				cerr << "Generated file has less lines than the reference!" << endl;
 				return false;
 			}
 
 			getline(ifref,l_ref);
 			getline(ifout,l_out);
 			if (l_ref!=l_out) {
-				cerr << " ERROR, Sun generatet error at following point an error " << endl;
+				cerr << "Generated and reference files differ!" << endl;
 				cerr << "ref : \n " << l_ref << endl;
 				cerr << "out : \n " << l_out << endl;
 				status=false;
@@ -140,7 +138,7 @@ bool compareFiles(){
 		}
 
 		if(!ifout.eof()) {
-			cerr << "To much lines generated as result!!!" << endl;
+			cerr << "Generated file has more lines than the reference!" << endl;
 			status=false;
 		}
 		ifout.close();

tests/stats/stats.cc

@@ -25,7 +25,7 @@ void cr_fixed_vectors(vector<double> &X, vector<double> &Y) {
 
 void cr_rand_vectors(vector<double> &X, vector<double> &Y) {
 	const size_t N = 20;
-	srand( time(NULL) );
+	srand( static_cast<unsigned int>(time(NULL)) );
 	X.clear(); X.resize(N);
 	Y.clear(); Y.resize(N);
 
@@ -191,7 +191,7 @@ bool check_basics(const vector<double>& X, const vector<double>& Y) {
 	}
 
 	//vector weighted mean
-	const vector<double> weights(X.size(), 1./(X.size()));
+	const vector<double> weights(X.size(), 1./static_cast<double>(X.size()));
 	const double vector_mean = Interpol1D::weightedMean(X, weights);
 	const double mean = Interpol1D::arithmeticMean(X);
 	const double vector_mean_status = IOUtils::checkEpsilonEquality(vector_mean, mean, 1e-6);