PR libstdc++/80506 fix constant used in condition

	PR libstdc++/80506
	* include/bits/random.tcc (gamma_distribution::operator()): Fix magic
	number used in loop condition.

From-SVN: r247099

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index f2d139a..f2b533b 100644 (file)
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,5 +1,9 @@
 2017-04-24  Jonathan Wakely  <jwakely@redhat.com>
 
+       PR libstdc++/80506
+       * include/bits/random.tcc (gamma_distribution::operator()): Fix magic
+       number used in loop condition.
+
        PR libstdc++/80504
        * include/bits/refwrap.h (ref, cref): Qualify calls.
        * testsuite/20_util/reference_wrapper/80504.cc: New test.

diff --git a/libstdc++-v3/include/bits/random.tcc b/libstdc++-v3/include/bits/random.tcc
index df05ebe..63d1c02 100644 (file)
--- a/libstdc++-v3/include/bits/random.tcc
+++ b/libstdc++-v3/include/bits/random.tcc
@@ -2356,7 +2356,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
            __v = __v * __v * __v;
            __u = __aurng();
          }
-       while (__u > result_type(1.0) - 0.331 * __n * __n * __n * __n
+       while (__u > result_type(1.0) - 0.0331 * __n * __n * __n * __n
               && (std::log(__u) > (0.5 * __n * __n + __a1
                                    * (1.0 - __v + std::log(__v)))));