libcpp: 2013-10-30 Edward Smith-Rowland <3dw4rd@verizon.net> implement C++14 digit separators. * include/cpplib.h (cpp_options): Add digit_separators flag. * internal.h (DIGIT_SEP(c)): New macro. * expr.c (cpp_classify_number): Check improper placement of digit sep; (cpp_interpret_integer): Skip over digit separators. * init.c (lang_flags): Add digit_separators flag; (lang_defaults): Add digit separator flags per language; (cpp_set_lang): Set digit_separators * lex.c (lex_number): Add digits separator to allowable characters for C++14. gcc/c-family: 2013-10-30 Edward Smith-Rowland <3dw4rd@verizon.net> * c-lex.c (interpret_float): Remove digit separators from scratch string before building real literal. gcc/testsuite: 2013-10-30 Edward Smith-Rowland <3dw4rd@verizon.net> * g++.dg/cpp1y/digit-sep.C: New. * g++.dg/cpp1y/digit-sep-neg.C: New. * g++.dg/cpp1y/digit-sep-cxx11-neg.C: New. libstdc++-v3: 2013-10-30 Edward Smith-Rowland <3dw4rd@verizon.net> implement C++14 digit separators. * include/include/bits/parse_numbers.h: Change struct _Digit<_Base, '`'> to struct _Digit<_Base, '\''>.