1 files changed, 48 insertions, 0 deletions
diff --git a/lib/fwdlib.hpp b/lib/fwdlib.hpp
new file mode 100644
index 0000000..0462c52
--- /dev/null
+++ b/lib/fwdlib.hpp
@@ -0,0 +1,48 @@
+#ifndef FWDLIB_HPP
+#define FWDLIB_HPP
+
+#include <string>
+#include <optional>
+#include <iostream>
+#include <unordered_map>
+#include <unordered_set>
+
+using namespace std;
+
+static inline void fwd_getline(auto next)
+{
+	if (cin.eof())
+		next(optional<string>{});
+
+	if (string line; getline(cin, line))
+		next(optional<string>{line});
+	else
+		next(optional<string>{});
+}
+
+static void fwd_foreach(auto container, auto next)
+{
+	for (auto &n : container)
+		next(n);
+}
+
+static void fwd_some(auto option, auto ok, auto fail)
+{
+	if (option)
+		ok(std::move(option.value()));
+	else
+		fail();
+}
+
+static void fwd_insert(auto container, auto elem, auto next)
+{
+	container.insert(std::move(elem));
+	next(std::move(container));
+}
+
+static void fwd_println(auto elem)
+{
+	cout << elem << endl;
+}
+
+#endif /* FWDLIB_HPP */