Just for historical record for anyone who search this, I was able to reproduce this with clang 4, 5 and 6.
I can only assume it is an issue with the version of libstdc++-dev pushed to 16.04.03. Running the resulting executable always triggers a segmentation fault with -03 but runs correctly without. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1748344 Title: clang++ regex_replace always segfaults with -O3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/llvm-defaults/+bug/1748344/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
