Изменения до 6 включительно

project/histogram.cpp

@@ -2,7 +2,7 @@
 #include <vector>
 #include "histogram.h"
 using namespace std;
-static void
+void
 find_minmax(vector<double> numbers, double& min, double& max) {
     min = numbers[0];
     max = numbers[0];
@@ -16,7 +16,7 @@ find_minmax(vector<double> numbers, double& min, double& max) {
 }
 }
 
- vector<size_t>
+vector<size_t>
 make_histogram(vector<double> numbers, size_t bin_count) {
     vector <size_t> bins(bin_count);
     double min, max;
@@ -40,4 +40,4 @@ make_histogram(vector<double> numbers, size_t bin_count) {
         return bins;
 
 
- }
+}

unittest.cpp

@@ -0,0 +1,12 @@
+#define DOCTEST_CONFIG_NO_MULTITHREADING
+#define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
+#include "doctest.h"
+#include "project\histogram_internal.h"
+
+ TEST_CASE("distinct positive numbers") {
+    double min = 0;
+    double max = 0;
+    find_minmax({1, 2}, min, max);
+    CHECK(min == 2);
+    CHECK(max == 2);
+}