* include/ext/random.tcc (uniform_on_sphere_helper): Define.
(uniform_on_sphere_distribution::operator()): Use the new helper
class for the implementation.
* testsuite/ext/random/uniform_on_sphere_distribution/operators/
equal.cc: Remove bogus part of comment.
* testsuite/ext/random/uniform_on_sphere_distribution/operators/
inequal.cc: Likewise.
* testsuite/ext/random/uniform_on_sphere_distribution/operators/
serialize.cc: Add check to verify result of serialzation and
deserialization.
* testsuite/ext/random/uniform_on_sphere_distribution/operators/
generate.cc: New file.
From-SVN: r213779
83a4216dd2