https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68737
--- Comment #26 from Jonathan Wakely <redi at gcc dot gnu.org> --- Author: redi Date: Mon Jan 28 23:58:57 2019 New Revision: 268350 URL: https://gcc.gnu.org/viewcvs?rev=268350&root=gcc&view=rev Log: PR libstdc++/68737 Do not use vsnprintf on HPUX It doesn't conform to the spec, so use vsprintf with a large buffer instead. PR libstdc++/68737 * config/locale/generic/c_locale.h (__convert_from_v) [_GLIBCXX_USE_C99_STDIO]: Also check _GLIBCXX_HAVE_BROKEN_VSNPRINTF. * config/os/hpux/os_defines.h: Define _GLIBCXX_HAVE_BROKEN_VSNPRINTF. * include/bits/locale_facets.tcc (num_put::_M_insert_float) [_GLIBCXX_USE_C99_STDIO]: Also check _GLIBCXX_HAVE_BROKEN_VSNPRINTF. Modified: trunk/libstdc++-v3/ChangeLog trunk/libstdc++-v3/config/locale/generic/c_locale.h trunk/libstdc++-v3/config/os/hpux/os_defines.h trunk/libstdc++-v3/include/bits/locale_facets.tcc
