http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58072
--- Comment #1 from Ed Smith-Rowland <3dw4rd at verizon dot net> --- Created attachment 30604 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30604&action=edit Patch c_parse_error to catch and describe user-defined literal tokens explicitly. gcc/c-family: 2013-08-03 Ed Smith-Rowland <3dw...@verizon.net> PR c++/58072 * c-common.c (c_parse_error): Catch user-defined literal tokens and provide useful error strings. Waiting for testing because I'm sure there will be testsuite fallout. We get this: ed@bad-horse:~$ ./bin_literal/bin/g++ -fdiagnostics-color -std=c++1y blah.cpp -o blah blah.cpp:6:8: error: expected unqualified-id before user-defined character literal extern 'c'void*blah(void*); ^ blah.cpp:7:8: error: expected unqualified-id before user-defined character literal extern L'c'void*Lblah(void*); ^ blah.cpp:8:8: error: expected unqualified-id before user-defined character literal extern u'c'void*ublah(void*); ^ blah.cpp:9:8: error: expected unqualified-id before user-defined character literal extern U'c'void*Ublah(void*); ^ blah.cpp:11:8: error: expected unqualified-id before user-defined string literal extern "c"void*strblah(void*); ^ blah.cpp:12:8: error: expected unqualified-id before user-defined string literal extern L"c"void*Lstrblah(void*); ^ blah.cpp:13:8: error: expected unqualified-id before user-defined string literal extern u"c"void*ustrblah(void*); ^ blah.cpp:14:8: error: expected unqualified-id before user-defined string literal extern U"c"void*Ustrblah(void*); ^ blah.cpp:15:8: error: expected unqualified-id before user-defined string literal extern u8"c"void*u8strblah(void*); ^ blah.cpp:17:8: error: expected unqualified-id before numeric constant extern 123void*ULLblah(void*); ^ blah.cpp:18:8: error: expected unqualified-id before numeric constant extern 123.456void*Ldblblah(void*); ^
