I prefer && instead of and.
&& is widely known and accepted, while many don't even know that and is valid C++.- Some IDEs don't accept
and (and friends) by default. For example MSVC++.
- At least for me, the operator precedence of
&& and || is ingrained into my head. While and and or have the same precedences as && and ||, the simple fact that I'm much less used to them makes it harder to read a condition.
On the other hand, and is more verbose and might be easier to use for programmers who have learned programming with languages that don't use &&. But one could argue that these people should learn C++ rather than try to change it's snytax.
