From 5a87e8cf207633a656de4fd5bbdff87e3ecdc704 Mon Sep 17 00:00:00 2001
From: Mike <45243121+tankf33der@users.noreply.github.com>
Date: Sun, 17 Aug 2025 01:45:47 +0300
Subject: [PATCH] math.big: fix integer_from_int(min_int) edge case, add tests
 (#25120)

---
 vlib/math/big/big_test.v |  2 ++
 vlib/math/big/integer.v  | 13 ++++++++++---
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/vlib/math/big/big_test.v b/vlib/math/big/big_test.v
index 2097b6a4e7..15c422b0a1 100644
--- a/vlib/math/big/big_test.v
+++ b/vlib/math/big/big_test.v
@@ -52,6 +52,8 @@ const integer_from_int_test_data = [
 	IntegerFromTest{ 127, '127' },
 	IntegerFromTest{ 1024, '1024' },
 	IntegerFromTest{ 2147483647, '0x7fffffff' },
+	IntegerFromTest{ -2147483647, '-2147483647' },
+	IntegerFromTest{ -2147483648, '-2147483648' },
 ]
 
 const integer_from_u64_test_data = [
diff --git a/vlib/math/big/integer.v b/vlib/math/big/integer.v
index 15736297b9..8f169301e6 100644
--- a/vlib/math/big/integer.v
+++ b/vlib/math/big/integer.v
@@ -51,9 +51,16 @@ pub fn integer_from_int(value int) Integer {
 	if value == 0 {
 		return zero_int
 	}
-	return Integer{
-		digits: [u64(iabs(value))]
-		signum: int_signum(value)
+	if value == min_int {
+		return Integer{
+			digits: [u64(0x80000000)]
+			signum: -1
+		}
+	} else {
+		return Integer{
+			digits: [u64(iabs(value))]
+			signum: int_signum(value)
+		}
 	}
 }