add <= and >= operators to Approx (and also maybe < and >)

[onqtam]

No description provided.

[jonathansharman]

This seems unnecessary to me. The point of Approx is to compensate for the fact that floating-point imprecision leads to equality checks almost always being false. You shouldn't need to introduce an epsilon if you're testing for inequality.

[onqtam]

well the <= and >= operators got added to Catch so I figured I might as well do the same - it's just a few lines of code.

This is indeed not requested yet for doctest but someone might have a use for it - and it's trivial to implement. I'm wasting time with such minor stuff until I get back on the horse with big and important features.

Thanks for the interest!