ex1

ex1/D/skalar_stl/mylib.cpp

@@ -0,0 +1,29 @@
+#include "mylib.h"
+#include <cassert>       // assert()
+#include <cmath>
+#include <vector>
+
+using namespace std;
+
+long double Kahan_skalar(vector<double> const &input)
+{
+    long double sum = 0.0;
+    long double c = 0.0;
+
+    for (long unsigned int i=0; i<input.size(); i++){
+        long double y = input[i] - c;
+        long double t = sum + y;
+        c = (t-sum) - y;
+        sum = t;
+    }
+    return sum;
+}
+
+long double normal_sum(vector<double> const &input)
+{
+    long double sum = 0.0;
+    for (long unsigned int i=0; i<input.size(); i++){
+        sum += input[i];
+    }
+    return sum;
+}