Re: Why is there no 'math.round'?

[David Kastrup <dak@...>]

Luiz Henrique de Figueiredo <lhf@tecgraf.puc-rio.br> writes:

>> That's hardly an excuse for not having a round function.
>
> No excuses are needed. Lua's philosophy is minimalist. Since Lua
> libraries are easily extended either in C or in Lua, you can simply
> add a math.round function that suits you.

The problem is that it might not suit somebody else...  Proliferation of
incompatible implementations is one thing that has kept numerical
libraries in C isolated: they all have their own, incompatible ways to
implement multidimensional arrays with run-time sizing.

Obviously, Lua implements some math functions in spite of being
minimalist.  The question is where to draw the line (which actually is
all what rounding functions are about)...

-- 
David Kastrup