twisted modules #2807
twisted modules #2807
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Codecov Report
@@ Coverage Diff @@
## master #2807 +/- ##
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Coverage 73.63% 73.63%
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Files 455 455
Lines 64536 64566 +30
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+ Hits 47520 47543 +23
- Misses 17016 17023 +7
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| function twist(M::SubquoModule{T}, g::GrpAbFinGenElem) where {T<:MPolyDecRingElem} | ||
| R = base_ring(M) | ||
| @req parent(g) == grading_group(R) "Group element not contained in grading group of base ring" |
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Is == here enough or do we need ===? (same at other places)
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@fieker Please clearify!
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Sideremark:
If === is needed, this problem is not restricted to this PR. The problem then also occurs in Modules/ModulesGraded.jl (and possibly other files) as the same kind of comparison also occurs there with ==.
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I think == and === are the same for rings, so either is fine.
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As confirmed by @fieker, it is as I thought: There is no difference between == and === here. That is, the PR can be merged and no other action is needed.
Co-authored-by: Lars Göttgens <lars.goettgens@rwth-aachen.de>
Co-authored-by: Lars Göttgens <lars.goettgens@rwth-aachen.de>
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Thanks for spotting, it should be |
| ``` | ||
| """ | ||
| function twist(M::ModuleFP{T}, g::GrpAbFinGenElem) where {T<:MPolyDecRingElem} | ||
| error("Not implemented for the given type") |
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I am not going to block this PR over this, but, normally we strive to indent code with (at least) two spaces.
(But of course we are already widely inconsistent about this, which is why I am not asking for it to be changed here and now, just wanted to point it out)
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