From: Richard Kreckel <Richard.Kreckel@uni-mainz.de>
Date: Fri, 4 Aug 2000 16:36:55 +0000 (+0000)
Subject: - Check *this for zeroness before .invert()ing it.
X-Git-Tag: release_0-6-4~5
X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=commitdiff_plain;h=464c1a74eec40b337738483cc25338f543d86e92

- Check *this for zeroness before .invert()ing it.
---

diff --git a/ginac/numeric.cpp b/ginac/numeric.cpp
index bfa00af6..0df296eb 100644
--- a/ginac/numeric.cpp
+++ b/ginac/numeric.cpp
@@ -716,7 +716,7 @@ numeric numeric::mul(const numeric & other) const
 numeric numeric::div(const numeric & other) const
 {
     if (::zerop(*other.value))
-        throw std::overflow_error("division by zero");
+        throw std::overflow_error("numeric::div(): division by zero");
     return numeric((*value)/(*other.value));
 }
 
@@ -741,6 +741,8 @@ numeric numeric::power(const numeric & other) const
 /** Inverse of a number. */
 numeric numeric::inverse(void) const
 {
+    if (::zerop(*value))
+        throw std::overflow_error("numeric::inverse(): division by zero");
     return numeric(::recip(*value));  // -> CLN
 }