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Ran 06 Dec 2018 04:20AM UTC

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Committed 12 Nov 2018 07:46PM UTC coverage: 98.824%. Remained the same

Job # 221.4

Build Type

cron

travis-ci

Committed by

omus

Commit Message

Performance fix: avoid unnecessary `convert` on setindex!、copy when type is same. (#38)

* Add `convert(::Type{T}, x::T) where {T<:FD} = x`

This fixes unnecessary copies on `setindex!`, etc.

* Remove "copy constructor" after correct `convert` fix

The "copy constructor" is no longer necessary now that a no-op
`convert` is added, since by default construction falls back to convert.

To verify, after this change, the performance is still correct:
```
julia> f = FixedPointDecimals.FixedDecimal{Int128,2}(3.25)
FixedDecimal{Int128,2}(3.25)

julia> @btime x = FixedPointDecimals.FixedDecimal{Int128, 2}($f)
  0.036 ns (0 allocations: 0 bytes)
FixedDecimal{Int128,2}(3.25)
```

And `@code_native` shows this to be a simple reinterpret.

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