Initial work on calculator program.

calculator/Recipe.cpp

@@ -0,0 +1,20 @@
+#include <exception>
+#include <format>
+#include <string>
+
+#include "Recipe.h"
+
+std::vector<std::pair<Product, float> > Recipe::Ingredients(float overclock)
+{
+	if(overclock < 0.0f || overclock > 2.5f)
+	{
+		auto error = std::format("Invalid overclock of {:.2f}%.", (overclock * 100.0f));
+		throw std::invalid_argument(error);
+	}
+
+	std::vector<std::pair<Product, float> > rtn;
+	for(const auto &ingredient : ingredients)
+		rtn.push_back({ingredient.first, ingredient.second * overclock});
+
+	return rtn;
+}