Morten Piibeleht 6ddbd340b0 Make convert(Real, ::HalfInteger) yield HalfInteger (#5) ... As HalfInteger <: Real, there should be no reason to convert anything in this situation. It happens because the convert method resorts to Float64 as an intermediate value. To still get conversion to floats, we can just dispatch on AbstractFloat instead. However, it should be better to convert the numerator to T first and then divide, so that we would not use a potentially lower precision intermediate value. This solves the problem where calling sum on an vector of HalfIntegers yields a floating point value, even though there is no reason to convert in the summation: julia> sum([HalfInteger(1//2), HalfInteger(3//2)]) 2.0 This is because there is an implicit convert(::Real) in the Base.add_sum function. With this patch the sum call correctly yields a HalfInteger. It also updates the tests related to HalfInteger convert methods: - Make sure that the convert tests also check types - Add a few tests for converting out of HalfInteger		2019-02-21 00:16:26 +01:00
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halfinteger.jl	Make convert(Real, ::HalfInteger) yield HalfInteger (#5)	2019-02-21 00:16:26 +01:00
runtests.jl	Partially revamp the HalfInteger type (#4)	2019-01-10 21:50:46 +01:00