From a949a2cd08ca8e7539c0556eed67976881b8840f Mon Sep 17 00:00:00 2001
From: Sam Hocevar <sam@hocevar.net>
Date: Mon, 9 Jan 2012 22:49:33 +0000
Subject: [PATCH] math: fix an infinite loop in the real number print function.

---
 src/real.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/real.cpp b/src/real.cpp
index a01f233d..c2dfcaba 100644
--- a/src/real.cpp
+++ b/src/real.cpp
@@ -1274,6 +1274,12 @@ void real::print(int ndigits) const
         x = -x;
     }
 
+    if (!x)
+    {
+        printf("0.0\n");
+        return;
+    }
+
     /* Normalise x so that mantissa is in [1..9.999] */
     /* FIXME: better use int64_t when the cast is implemented */
     int exponent = ceil(log10(x));