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PR libstdc++/63775 * include/bits/regex_compiler.h (_Compiler<>::_M_expression_term, _BracketMatcher<>::_M_make_range): Throw regex_erorr on invalid range like [z-a]. Change _M_expression_term interface. * include/bits/regex_compiler.tcc ( _Compiler<>::_M_insert_bracket_matcher, _Compiler<>::_M_expression_term): Rewrite bracket expression parsing. * testsuite/28_regex/algorithms/regex_match/cstring_bracket_01.cc: Add testcases and move file out of extended. From-SVN: r217461
file: libstdc++-v3/README New users may wish to point their web browsers to the file index.html in the 'doc/html' subdirectory. It contains brief building instructions and notes on how to configure the library in interesting ways.