From 68b5f14d536c1a81c63412a9f3701380c9bc116c Mon Sep 17 00:00:00 2001
From: Kenta Murata <mrkn@users.noreply.github.com>
Date: Wed, 16 Sep 2020 19:27:16 +0900
Subject: Fix assertion failed in Complex.polar without NDEBUG (#3551)

Fixes [Bug #17172].
---
 complex.c | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'complex.c')

diff --git a/complex.c b/complex.c
index b8dd6169ae..4100fac082 100644
--- a/complex.c
+++ b/complex.c
@@ -732,6 +732,14 @@ nucomp_s_polar(int argc, VALUE *argv, VALUE klass)
 	nucomp_real_check(arg);
 	break;
     }
+    if (RB_TYPE_P(abs, T_COMPLEX)) {
+        get_dat1(abs);
+        abs = dat->real;
+    }
+    if (RB_TYPE_P(arg, T_COMPLEX)) {
+        get_dat1(arg);
+        arg = dat->real;
+    }
     return f_complex_polar(klass, abs, arg);
 }
 
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