On Thu, 14 May 2015, Dingbao Xie wrote: > Attachment are two files to reproduce the undefined behavior.
<snip> > src/pcre2_compile.c:6665:45: runtime error: left shift of 1 by 31 places > cannot be represented in type 'int' Thank you for reporting this. I am not a C++ user, nor do I have clang installed, but I was eventually able to reproduce this with gcc, using the options -fsanitize=undefined -std=c99. I have fixed the issue in four places (by changing "1 << x" to "1u << x") and I have committed the patched code (it's now at r267). The use of -fsanitize=undefined has shown up some other issues in PCRE2, which I will try to fix shortly. I will then add a compile using this option to the tests that are done before each release. Philip -- Philip Hazel -- ## List details at https://lists.exim.org/mailman/listinfo/pcre-dev
