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Fix method ambiguity error of NaNMath.pow #690

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Jan 13, 2025
Merged

Fix method ambiguity error of NaNMath.pow #690

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a335548
Fix method ambiguity error of `NaNMath.pow`
devmotion Jan 9, 2025
0726f51
Change `@number_methods` instead
devmotion Jan 10, 2025
82d8e3e
More consistent code
devmotion Jan 10, 2025
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3 changes: 3 additions & 0 deletions src/methods.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -98,6 +98,9 @@ end
@number_methods(BasicSymbolic{<:Number}, term(f, a), term(f, a, b), skipbasics)
@number_methods(BasicSymbolic{<:LiteralReal}, term(f, a), term(f, a, b), onlybasics)

# Fix method ambiguity issue in NaNMath >= 1.0.2
NaNMath.pow(x::BasicSymbolic{<:Number}, y::Integer) = x^y
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Suggested change
NaNMath.pow(x::BasicSymbolic{<:Number}, y::Integer) = x^y
NaNMath.pow(x::BasicSymbolic{<:Number}, y::Integer) = maketerm(typeof(x), NaNMath.pow, [x, y], metadata(x))

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@devmotion devmotion Jan 10, 2025 •
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We want to avoid NaNMath in that case in NaNMath < 1.0.2 and on NaNMath >= 1.0.2 an Integer as second argument falls back to ^ anyway. So I think using ^ is the better and safer approach, regardless of the NaNMath version.

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Then can we add this to @number_methods?

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I did but I guess incorrectly. The original error is gone but it seems it causes https://github.com/JuliaSymbolics/SymbolicUtils.jl/actions/runs/12708708876/job/35426212172?pr=690#step:6:885.


for f in vcat(diadic, [+, -, *, \, /, ^])
@eval promote_symtype(::$(typeof(f)),
T::Type{<:Number},
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