Re: [RFC] Floating Point support in GMP extension

On Mon, Apr 21, 2014 at 10:40 PM, Park Framework <park.framework@gmail.com>wrote: > Concept is simple. > Need, remove GMPInt, leave only GMPFloat. > For backward compatibility in php.ini set default values > ​​gmp.default_precision = 0 > Anyone who wants to work with float, must specify precision > 0 > What do you think about this? > This is not possible, because GMP integers and GMP floats are fundamentally and inherently different types. A GMP integer isn't just a GMP float with zero precision. Actually, what I think you're missing here is that the GMP floating point type is just that: A **floating** point type. This means that it is **not** precise. What you specify as the GMP float precision actually translates to the size of the mantissa/significand, not the number of places after the comma. GMP integers on the other hand are precises. Furthermore a primary application for GMP integers are computations over cyclic groups, as well as other number theoretic computations. The operations for these are not a available for the floating point type (and frankly, wouldn't really make sense). Maybe you're looking for the BCMath extension? Nikita