Start using floatarray internally. #17
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floatarrayare defined inFloat.Arraysince OCaml4.08. They are guaranteed to be always be unboxed flat arrays. If the compiler supports it (see: ocaml/ocaml#12019),floatarraycan be cast todouble *arrays and passed to a C function.Currently, they share the same underlying representation as
float arrayso switching to the shouldn't impact performances. However, this could change (or can be by disabling flat float arrays in the compiler) so this will make the implementation more robust to future changes in the compiler.