From 82bb37422dce12b0fe16e5ee3f536ce74fe70a17 Mon Sep 17 00:00:00 2001
From: Gabriel Ebner <gebner@gebner.org>
Date: Mon, 19 Jun 2017 14:30:58 +0200
Subject: [PATCH] fix(library/init/data/int): add to_string instance for
 integers

---
 library/init/data/int/basic.lean | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/library/init/data/int/basic.lean b/library/init/data/int/basic.lean
index 201d294906..4f6d50201c 100644
--- a/library/init/data/int/basic.lean
+++ b/library/init/data/int/basic.lean
@@ -31,6 +31,9 @@ protected def int.repr : int → string
 instance : has_repr int :=
 ⟨int.repr⟩
 
+instance : has_to_string int :=
+⟨int.repr⟩
+
 namespace int
 
 protected lemma coe_nat_eq (n : ℕ) : ↑n = int.of_nat n := rfl