https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105441
--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-12 branch has been updated by Patrick Palka <ppa...@gcc.gnu.org>: https://gcc.gnu.org/g:4a6d7da796e456115bbac92e056123f095a3780c commit r12-8327-g4a6d7da796e456115bbac92e056123f095a3780c Author: Patrick Palka <ppa...@redhat.com> Date: Mon May 2 07:00:48 2022 -0400 libstdc++: case-sensitivity in hexfloat std::from_chars [PR105441] The hexfloat parser for binary32/64 added in r12-6645-gcc3bf3404e4b1c overlooked that the exponent part can also begin with an uppercase 'P'. PR libstdc++/105441 libstdc++-v3/ChangeLog: * src/c++17/floating_from_chars.cc (__floating_from_chars_hex): Also accept 'P' as the start of the exponent. * testsuite/20_util/from_chars/7.cc: Add corresponding testcase. (cherry picked from commit 576f975cabb0fd9843de152a2d247d486a967b08)
