From bbfe0b8d040728b4f6a40de0480301b4b5f3c9e2 Mon Sep 17 00:00:00 2001
From: Alejandro Isaza <alejandro.isaza@gmail.com>
Date: Sat, 9 Dec 2017 14:45:46 -0800
Subject: [PATCH] mobile: Add GetSign to BigInt (#15558)

---
 mobile/big.go | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/mobile/big.go b/mobile/big.go
index 564fbad47..dd7b15878 100644
--- a/mobile/big.go
+++ b/mobile/big.go
@@ -62,6 +62,16 @@ func (bi *BigInt) SetInt64(x int64) {
 	bi.bigint.SetInt64(x)
 }
 
+// Sign returns:
+//
+//	-1 if x <  0
+//	 0 if x == 0
+//	+1 if x >  0
+//
+func (bi *BigInt) Sign() int {
+	return bi.bigint.Sign()
+}
+
 // SetString sets the big int to x.
 //
 // The string prefix determines the actual conversion base. A prefix of "0x" or