Correct grammar; simplify boolean expressions

[eschnett]

No description provided.

[hkaiser]

I'll be happy to merge this (thanks for your work!) However I'd ask to leave the Boolean expressions in place as those otherwise generate warning in MSVC.

[eschnett]

Would an explicit cast to bool or a comparison to zero help with that warning?

[K-ballo]

Please don't add an explicit cast to bool. For the count(...) ? true : false cases, count(...) != 0 would work and be more explicit about what they are doing. The mode != ... cases should not be generating warnings.

[eschnett]

I am now using (...) != 0 instead of an implicit cast to bool.

[hkaiser]

Thanks!