robot_name: iteration 1

cpp/robot-name/robot_name.cpp

@@ -0,0 +1,47 @@
+#include "robot_name.h"
+
+#include <algorithm>
+
+
+namespace robot_name {
+
+using namespace std;
+
+
+namespace {
+
+const size_t alpha_part_size = 2;
+const size_t digit_part_size = 3;
+
+string random_string(size_t size, char from_char, char to_char)
+{
+    auto random_char = [from_char, to_char]() -> char {
+        return from_char + rand() % (to_char - from_char + 1);
+    };
+
+    string result(size, 0);
+    generate_n(result.begin(), size, random_char);
+
+    return result;
+};
+
+}
+
+
+robot::robot()
+{
+    reset();
+}
+
+void robot::reset()
+{
+    name_ = random_string(alpha_part_size, 'A', 'Z')
+          + random_string(digit_part_size, '0', '9');
+}
+
+const name_t &robot::name() const
+{
+    return name_;
+}
+
+}

cpp/robot-name/robot_name.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#define EXERCISM_RUN_ALL_TESTS
+
+#include <string>
+
+namespace robot_name {
+
+typedef std::string name_t;
+
+
+class robot
+{
+    name_t name_;
+
+public:
+
+    robot();
+
+    void reset();
+
+    const name_t &name() const;
+};
+
+}