--- /dev/null
+#!/usr/bin/perl -w
+
+# Test for memory leaks from _zero() and friends.
+
+use Test::More;
+use strict;
+
+BEGIN
+ {
+ $| = 1;
+ chdir 't' if -d 't';
+ unshift @INC, ('../lib', '../blib/arch'); # for running manually
+ plan tests => 4;
+ }
+
+#############################################################################
+package Math::BigInt::FastCalc::LeakCheck;
+use base qw(Math::BigInt::FastCalc);
+
+my $destroyed = 0;
+sub DESTROY { $destroyed++ }
+
+#############################################################################
+package main;
+
+for my $method (qw(_zero _one _two _ten))
+ {
+ $destroyed = 0;
+ {
+ my $num = Math::BigInt::FastCalc::LeakCheck->$method();
+ bless $num, "Math::BigInt::FastCalc::LeakCheck";
+ }
+ is ($destroyed, 1, "$method does not leak memory");
+ }