From 9b66ab75fde5c2f451c36621e15b2489ee71c00c Mon Sep 17 00:00:00 2001 From: Marshall Clow Date: Thu, 11 Feb 2016 15:23:04 +0000 Subject: [PATCH] Add some tests to ensure that the __regex_word does not conflict with any of ctype_base's values. Hopefully this will catch cases like https://llvm.org/bugs/show_bug.cgi?id=26476 in the future. llvm-svn: 260527 --- libcxx/test/std/re/re.traits/lookup_classname.pass.cpp | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/libcxx/test/std/re/re.traits/lookup_classname.pass.cpp b/libcxx/test/std/re/re.traits/lookup_classname.pass.cpp index 0b1b18e..d3e5a5c 100644 --- a/libcxx/test/std/re/re.traits/lookup_classname.pass.cpp +++ b/libcxx/test/std/re/re.traits/lookup_classname.pass.cpp @@ -33,6 +33,19 @@ test(const char_type* A, int main() { +// if __regex_word is not distinct from all the classes, bad things happen +// See https://llvm.org/bugs/show_bug.cgi?id=26476 for an example. + assert((std::ctype_base::space & std::regex_traits::__regex_word) == 0); + assert((std::ctype_base::print & std::regex_traits::__regex_word) == 0); + assert((std::ctype_base::cntrl & std::regex_traits::__regex_word) == 0); + assert((std::ctype_base::upper & std::regex_traits::__regex_word) == 0); + assert((std::ctype_base::lower & std::regex_traits::__regex_word) == 0); + assert((std::ctype_base::alpha & std::regex_traits::__regex_word) == 0); + assert((std::ctype_base::digit & std::regex_traits::__regex_word) == 0); + assert((std::ctype_base::punct & std::regex_traits::__regex_word) == 0); + assert((std::ctype_base::xdigit & std::regex_traits::__regex_word) == 0); + assert((std::ctype_base::blank & std::regex_traits::__regex_word) == 0); + test("d", std::ctype_base::digit); test("D", std::ctype_base::digit); test("d", std::ctype_base::digit, true); -- 2.7.4