From 33a14a6bda6fef7d53ce459ab521c369aacdcd85 Mon Sep 17 00:00:00 2001
From: Stepland <10530295-Buggyroom@users.noreply.gitlab.com>
Date: Tue, 27 Dec 2022 19:35:58 +0100
Subject: [PATCH] Add signed long long constructors for Fraction

---
 src/special_numeric_types.cpp | 19 +++++++++++++++++++
 src/special_numeric_types.hpp |  2 ++
 2 files changed, 21 insertions(+)

diff --git a/src/special_numeric_types.cpp b/src/special_numeric_types.cpp
index f2e20d2..c4f4380 100644
--- a/src/special_numeric_types.cpp
+++ b/src/special_numeric_types.cpp
@@ -2,6 +2,7 @@
 
 #include <cmath>
 #include <cstddef>
+#include <cstdint>
 #include <gmpxx.h>
 #include <stdexcept>
 
@@ -15,6 +16,24 @@ Fraction::Fraction(const unsigned long long a, const unsigned long long b) {
     value = Fraction{a}.value / Fraction{b}.value;
 }
 
+Fraction::Fraction(const long long a) {
+    const unsigned long long abs = [&](){
+        if (a == INT64_MIN) {
+            return static_cast<unsigned long long>(INT64_MAX) + 1;
+        } else {
+            return static_cast<unsigned long long>(a < 0 ? -a : a);
+        }
+    }();
+    value = Fraction{abs}.value;
+    if (a < 0) {
+        value = -value;
+    }
+}
+
+Fraction::Fraction(const long long a, const long long b) {
+    value = Fraction{a}.value / Fraction{b}.value;
+}
+
 Fraction::Fraction(const Decimal& d) {
     const auto reduced = d.reduce();
     const mpq_class sign = (reduced.sign() > 0 ? 1 : -1);
diff --git a/src/special_numeric_types.hpp b/src/special_numeric_types.hpp
index 9bc5df0..9b55876 100644
--- a/src/special_numeric_types.hpp
+++ b/src/special_numeric_types.hpp
@@ -23,6 +23,8 @@ public:
 
     explicit Fraction(const unsigned long long a);
     Fraction(const unsigned long long a, const unsigned long long b);
+    explicit Fraction(const long long a);
+    Fraction(const long long a, const long long b);
     explicit Fraction(const Decimal& d);
     explicit operator std::int64_t() const;
     explicit operator std::uint64_t() const;