2 files changed, 22 insertions, 1 deletions

diff --git a/src/parser.cc b/src/parser.cc
new file mode 100644
index 0000000..4106fc0
--- /dev/null
+++ b/src/parser.cc
@@ -0,0 +1,21 @@
+#include "parser.h"
+
+namespace SimpleParser {
+
+double calculate(std::string term) {
+	return Tree(term).solve();
+}
+
+double calculate(std::string term, const ConstantMap* constants) {
+	return Tree(term, constants).solve();
+}
+
+std::string print(std::string term) {
+	return Tree(term).print();
+}
+
+std::string print(std::string term, const ConstantMap* constants) {
+	return Tree(term, constants).print();
+}
+
+}
diff --git a/src/tree.h b/src/tree.h
index 0db1404..31d661c 100644
--- a/src/tree.h
+++ b/src/tree.h
@@ -13,7 +13,7 @@ typedef std::vector<std::unique_ptr<Node>> NodeCollection;
 
 class Tree {
 	public:
-		Tree(std::string);
+		explicit Tree(std::string);
 		Tree(std::string, const ConstantMap*);
 
 		double solve();