Test gr_poly over random rings #2277
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Looks good. Name clashes ought to be prevented already when constructing rings, but it's reasonable to catch in the parsing code too. Edit: one concern is that this code is O(n^2) in the number of generators but I think we already have that kind of complexity elsewhere. For rings with lots of generators the parsing ought to be lazy anyway. |
This is easier to avoid than I thought. → #2283 |
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Also fix a small bug this revealed in
gr_set_str.