since iscss(CircuitCode) returns nothing, take that into account and …

…throw error when calculating distance of generally non-CSS codes
QuantumSavory · Jan 21, 2025 · f752ba6 · f752ba6
1 parent 321d4f3
commit f752ba6
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/ecc/ECC.jl b/src/ecc/ECC.jl
@@ -130,7 +130,7 @@ The minimum distance of a qLDPC code requires:
 function distance end
 
 function distance(c::AbstractECC; kwargs...)
-    if !iscss(c)
+    if iscss(c) == nothing || !iscss(c)
         throw(ArgumentError("Computing the minimum distance of QLDPC using Mixed Integer Programming works only for CSS codes."))
     end
     return distance(parity_checks(c); kwargs...)