From 1c2c986796f1cd23ccdaf10ffe1a9e70c936b19c Mon Sep 17 00:00:00 2001 From: Marshall Clow Date: Fri, 22 Mar 2013 02:13:55 +0000 Subject: [PATCH] Fix undefined behavior in syntax_option_type::operator~ and match_flag_type::operator./a.out Found by UBSan llvm-svn: 177693 --- libcxx/include/regex | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libcxx/include/regex b/libcxx/include/regex index 1156a3e..d1afa54 100644 --- a/libcxx/include/regex +++ b/libcxx/include/regex @@ -764,7 +764,7 @@ _LIBCPP_CONSTEXPR syntax_option_type operator~(syntax_option_type __x) { - return syntax_option_type(~int(__x)); + return syntax_option_type(~int(__x) & 0x1FF); } inline _LIBCPP_INLINE_VISIBILITY @@ -840,7 +840,7 @@ _LIBCPP_CONSTEXPR match_flag_type operator~(match_flag_type __x) { - return match_flag_type(~int(__x)); + return match_flag_type(~int(__x) & 0x0FFF); } inline _LIBCPP_INLINE_VISIBILITY -- 2.7.4