https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68397
--- Comment #3 from emsr at gcc dot gnu.org --- Author: emsr Date: Thu Apr 20 15:41:59 2017 New Revision: 247027 URL: https://gcc.gnu.org/viewcvs?rev=247027&root=gcc&view=rev Log: 2017-04-20 Edward Smith-Rowland <3dw...@verizon.net> PR libstdc++/68397 std::tr1::expint fails ... long double arguments. * include/tr1/exp_integral.tcc: Increase iteration limits. * testsuite/tr1/5_numerical_facilities/special_functions/15_expint/ pr68397.cc: New test. * testsuite/special_functions/14_expint/pr68397.cc: New test. Added: trunk/libstdc++-v3/testsuite/special_functions/14_expint/pr68397.cc trunk/libstdc++-v3/testsuite/tr1/5_numerical_facilities/special_functions/15_expint/pr68397.cc Modified: trunk/libstdc++-v3/ChangeLog trunk/libstdc++-v3/include/tr1/exp_integral.tcc