Intel HLS example reports

Based on this modified code of yours now I am trying to use ac data type fixed . The two inputs are unsigned ac_ufixed<11,1>. The output is unsigned ac_ufixed<28,8>. The accumlator is ac_ufixed<28,8>, a_reg and b_reg as ac_ufixed<11,1> , sub as ac_fixed<12,2>, sub2 as ac_ufixed<21,1> . How can I define the test bench for this particular component ? Can you please help me particularly for the test bench of this component ? Below is my code snippet (component).... Thanks !

void diff_sq_acc( ac_ufixed<11,1> a[N], ac_ufixed<11,1> b[N], ac_ufixed<28,8> *dout)

{

unsigned char i;

ac_ufixed<28,8> acc= 0;

ac_ufixed<11,1> a_reg, b_reg;

ac_fixed<12,2> sub;

ac_ufixed<21,1> sub2 ;

for(i=0; i<N; i++)

{

# pragma HLS PIPELINE II=1

a_reg = a;

b_reg = b;

sub = a_reg - b_reg;

sub2 = sub*sub;

acc += sub2;

}

*dout = acc;

}