From f1fc09429dec8a212d0aed26439fbd0ccb209d97 Mon Sep 17 00:00:00 2001
From: Quinton Miller <nicetas.c@gmail.com>
Date: Wed, 21 May 2025 16:30:07 +0800
Subject: [PATCH] Add `BigRational#to_i`

---
 spec/std/big/big_rational_spec.cr | 8 ++++++++
 src/big/big_rational.cr           | 4 ++++
 2 files changed, 12 insertions(+)

diff --git a/spec/std/big/big_rational_spec.cr b/spec/std/big/big_rational_spec.cr
index f2175e1273ae..28b9d7d20df9 100644
--- a/spec/std/big/big_rational_spec.cr
+++ b/spec/std/big/big_rational_spec.cr
@@ -84,6 +84,14 @@ describe BigRational do
     r.to_s(36).should eq("4woiz/9b3djm")
   end
 
+  it "#to_i" do
+    br(10, 3).to_i.should eq(3)
+    br(90, 3).to_i.should eq(30)
+    br(1, 98).to_i.should eq(0)
+    br(-10, 3).to_i.should eq(-3)
+    expect_raises(OverflowError) { br(Int64::MAX, 1).to_i }
+  end
+
   it "#to_f64" do
     r = br(10, 3)
     f = 10.to_f64 / 3.to_f64
diff --git a/src/big/big_rational.cr b/src/big/big_rational.cr
index 1c25adf9434d..38298f0fa3b1 100644
--- a/src/big/big_rational.cr
+++ b/src/big/big_rational.cr
@@ -310,6 +310,10 @@ struct BigRational < Number
     to_f64!
   end
 
+  def to_i : Int32
+    to_i32
+  end
+
   delegate to_i8, to_i16, to_i32, to_i64, to_u8, to_u16, to_u32, to_u64, to: to_f64
 
   # Returns `self`.