Introduced simple result wrapper template

* offers bool() operator for easy assignment checks inside conditional statements

1 files changed, 29 insertions, 0 deletions

diff --git a/src/utility.h b/src/utility.h
new file mode 100644
index 0000000..6342420
--- /dev/null
+++ b/src/utility.h
@@ -0,0 +1,29 @@
+#ifndef TRIE_SRC_UTILITY_H_
+#define TRIE_SRC_UTILITY_H_
+
+namespace detail {
+
+template <
+	typename Value
+>
+struct Result {
+	Result():
+		value_(false, Value()) { }
+
+	Result(Value value):
+		value_(true, value) { }
+
+	inline operator bool() const {
+		return this->value_.first;
+	}
+
+	inline Value get() const {
+		return this->value_.second;
+	}
+
+	const std::pair<bool, Value> value_;
+};
+
+}
+
+#endif  // TRIE_SRC_UTILITY_H_