Fix `Integer.sqrt` to never exceed actual value `Integer.sqrt` uses `sqrt(3)` from libm for small values. This method must return a value less than or equal to the actual integer square root, but libm's sqrt does not always guarantee that. This change corrects that by decrementing the result if necessary. Fixes [Bug #21217]
Related issues
Bug #21217: Integer.sqrt produces wrong results even on input <= 1e18
Added by
merge revision(s) 3a7b9ca93b91dcc086b9ac8b9957e59268f9493b: [Backport #21217]