Add get_keys() and get_values() for std::map

SimoxUtility/CMakeLists.txt

@@ -88,6 +88,7 @@ SET(INCLUDES
 
     algorithm/for_each_if.h
     algorithm/apply.hpp
+    algorithm/get_map_keys_values.h
 
     color/cmaps/colormaps.h
     color/cmaps/Named.h

SimoxUtility/algorithm.h

@@ -3,3 +3,4 @@
 // This file is generated!
 
 #include "algorithm/for_each_if.h"
+#include "algorithm/get_map_keys_values.h"

SimoxUtility/algorithm/get_map_keys_values.h

+#include <map>
+#include <vector>
+
+
+namespace simox
+{
+
+
+    template <typename K, typename V>
+    std::vector<K> get_keys(const std::map<K, V>& map)
+    {
+        std::vector<K> keys;
+        keys.reserve(map.size());
+        for (const auto& [k, v] : map)
+        {
+            keys.push_back(k);
+        }
+        return keys;
+    }
+
+
+    template <typename K, typename V>
+    std::vector<V> get_values(const std::map<K, V>& map)
+    {
+        std::vector<V> values;
+        values.reserve(map.size());
+        for (const auto& [k, v] : map)
+        {
+            values.push_back(v);
+        }
+        return values;
+    }
+
+
+}