Are email addresses case sensitive?

From RFC 5321, section 2.3.11: The standard mailbox naming convention is defined to be “local-part@domain”; contemporary usage permits a much broader set of applications than simple “user names”. Consequently, and due to a long history of problems when intermediate hosts have attempted to optimize transport by modifying them, the local-part MUST be interpreted and assigned … Read more

What is a lambda expression in C++11?

The problem C++ includes useful generic functions like std::for_each and std::transform, which can be very handy. Unfortunately they can also be quite cumbersome to use, particularly if the functor you would like to apply is unique to the particular function. If you only use f once and in that specific place it seems overkill to … Read more

Center image using text-align center?

That will not work as the text-align property applies to block containers, not inline elements, and img is an inline element. See the W3C specification. Use this instead:

Git refusing to merge unrelated histories on rebase

During git rebase origin/development the following error message is shown from Git: My Git version is 2.9.0. It used to work fine in the previous version. How can I continue this rebase allowing unrelated histories with the forced flag introduced in the new release?