fast-math: Non IEEE-754 compliant compile-time floating-point optimisations

The Numeric.FastMath module brings into scope RULES for Floats and Doubles that rewrite x-x, 0*x and x*0 to 0. This disagrees with IEEE-754 when x is NaN, but is acceptable for most applications.

Importing Numeric.FastMath.Infinitesimal also rewrites 0/x to 0.

Optimisation (at least -O1) must be enabled for any RULES to take effect.

Modules

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• fast-math-0.1.tar.gz [browse] (Cabal source package)
• Package description (as included in the package)

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• LiyangHu, MikeIzbicki

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