1 files changed, 13 insertions, 0 deletions
diff --git a/euler/include/string b/euler/include/string
new file mode 100644
index 0000000..ce42b9e
--- /dev/null
+++ b/euler/include/string
@@ -0,0 +1,13 @@
+#pragma once
+
+#include <std/string.hpp>
+
+namespace std {
+
+  int stoi(const std::string &str, size_t *pos = 0, int base = 10);
+
+  std::string to_string(int value);
+
+  std::string operator +(std::string &&lhs, std::string &&rhs);
+
+}