What's the proper way to do assignment for struct array in Julia? -

i have issue assignment struct array (or constructor struct array) in julia. suppose want below tasks:

# define struct  struct grn_net   gene_net::matrix{float64}   init_s::vector{float64} end # define empty struct array net = array{grn_net}(100) # initialize struct array  n in 1:100     net[n] =grn_net(rand(5,5),rand(-1.:2.:1.,5)) end # make copy of net new_net = deepcopy(net) # initialize temporary matrix temp_mat = zeros(float64,5,5) n in 1:100     # gernerate 2 unique random positions     rand_pos = randperm(100)[1:2]     # randomly swap rows selected matrices     index = rand(0:1,gene_n)     m in 1:5         if index[m]==1             temp_mat[m,:] = net[rand_pos[1]].gene_net[m,:]         else             temp_mat[m,:] = net[rand_pos[2]].gene_net[m,:]         end     end     # save result matrix new net        new_net[n] = grn_net(temp_mat,rand(-1.:2.:1.,5)) end  

so, if run code, find new_net have same gene_net entries in struct array. when debug code, found, although temp_mat changed @ each step, new_net[n-1].gene_net reset save same matrix in new_net[n].gene_net. so, think problem new_net[n].gene_net sharing same space temp_mat. so, changed new_net[n] = grn_net(temp_mat,rand(-1.:2.:1.,5)) new_net[n] = grn_net(deepcopy(temp_mat),rand(-1.:2.:1.,5)), , problem fixed. however, i'm not sure how new_net , temp_mat sharing same space? or what's problem here? clarify issue?

btw, i'm not sure if title appropriate one, if can think of better one, please revise it.