Add dummy hash(::FractionalIdeal) (#4428)

oscar-system · Jan 12, 2025 · 374c805 · 374c805
1 parent a60b0d8
commit 374c805
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/src/Rings/FractionalIdeal.jl b/src/Rings/FractionalIdeal.jl
@@ -56,6 +56,13 @@ function ==(a::FractionalIdeal, b::FractionalIdeal)
   return a.num*b.den == b.num*a.den
 end
 
+function Base.hash(a::FractionalIdeal, h::UInt)
+  b = 0x4680fb583e498597 % UInt
+  # there is nothing better to include in the hash
+  h = hash(base_ring(a), h)
+  return xor(b, h)
+end
+
 function ^(a::FractionalIdeal, b::Int)
   return fractional_ideal(a.num^b, a.den^b)
 end