https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80955
--- Comment #2 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> --- Author: paolo Date: Mon Nov 6 10:33:41 2017 New Revision: 254443 URL: https://gcc.gnu.org/viewcvs?rev=254443&root=gcc&view=rev Log: /libcpp 2017-11-06 Mukesh Kapoor <mukesh.kap...@oracle.com> PR c++/80955 * lex.c (lex_string): When checking for a valid macro for the warning related to -Wliteral-suffix (CPP_W_LITERAL_SUFFIX), check that the macro name does not start with an underscore before calling is_macro(). /gcc/testsuite 2017-11-06 Mukesh Kapoor <mukesh.kap...@oracle.com> PR c++/80955 * g++.dg/cpp0x/udlit-macros.C: New. Added: trunk/gcc/testsuite/g++.dg/cpp0x/udlit-macros.C Modified: trunk/gcc/testsuite/ChangeLog trunk/libcpp/ChangeLog trunk/libcpp/lex.c
