On 21 May 2018 at 20:08, Mateusz Loskot <mate...@loskot.net> wrote: > On 21 May 2018 at 19:27, Jan Korous <jkor...@apple.com> wrote: >> >> You are hitting UB because of signed integer overflow. >> [...] >> >> BTW This is a perfect opportunity to try out UndefinedBehaviorSanitizer! >> >> https://clang.llvm.org/docs/UndefinedBehaviorSanitizer.html >> >>> clang++ -fsanitize=signed-integer-overflow overflow.cpp >>> ./a.out >> -2147483648 >> overflow.cpp:24:52: runtime error: signed integer overflow: 2147483647 - >> -2147483648 cannot be represented in type 'int' > > Hi Jan, > > This is very helpful indeed.
Jan, thank you very much! Best regards, -- Mateusz Loskot, http://mateusz.loskot.net _______________________________________________ cfe-users mailing list cfe-users@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-users
