Add some missing context parameters in fmpz_mod_mat

src/flint/fmpz_mod_mat.jl

@@ -89,7 +89,7 @@ function setindex!(a::ZZModMatrix, b::ZZModMatrix, r::UnitRange{Int64}, c::UnitR
   size(b) == (length(r), length(c)) || throw(DimensionMismatch("tried to assign a $(size(b, 1))x$(size(b, 2)) matrix to a $(length(r))x$(length(c)) destination"))
   A = view(a, r, c)
   ccall((:fmpz_mod_mat_set, libflint), Nothing,
-        (Ref{ZZModMatrix}, Ref{ZZModMatrix}), A, b)
+        (Ref{ZZModMatrix}, Ref{ZZModMatrix}, Ref{Nothing}), A, b, C_NULL) # ctx not used
 end
 
 function deepcopy_internal(a::ZZModMatrix, dict::IdDict)
@@ -535,7 +535,7 @@ function Solve._can_solve_internal_no_check(A::ZZModMatrix, b::ZZModMatrix, task
    x = similar(A, ncols(A), ncols(b))
    # This is probably only correct if the characteristic is prime
    fl = ccall((:fmpz_mod_mat_can_solve, libflint), Cint,
-              (Ref{ZZModMatrix}, Ref{ZZModMatrix}, Ref{ZZModMatrix}), x, A, b)
+              (Ref{ZZModMatrix}, Ref{ZZModMatrix}, Ref{ZZModMatrix}, Ref{fmpz_mod_ctx_struct}), x, A, b, base_ring(x).ninv)
    if task === :only_check || task === :with_solution
      return Bool(fl), x, zero(A, 0, 0)
    end
@@ -992,7 +992,7 @@ function nullspace(M::ZZModMatrix)
   # Apparently this only works correctly if base_ring(M) is a field
   N = similar(M, ncols(M), ncols(M))
   nullity = ccall((:fmpz_mod_mat_nullspace, libflint), Int,
-                  (Ref{ZZModMatrix}, Ref{ZZModMatrix}), N, M)
+                  (Ref{ZZModMatrix}, Ref{ZZModMatrix}, Ref{fmpz_mod_ctx_struct}), N, M, base_ring(N).ninv)
   return nullity, view(N, 1:nrows(N), 1:nullity)
 end