assertion + comment
@@ -115,6 +115,10 @@ static void combined_prox(iter_op_data* _data, float rho, float* dst, const floa
{
struct T1inv_s* data = CAST_DOWN(T1inv_s, _data);
+ // coil sensitivity part is left untouched
+
+ assert(src == dst);
+
if (data->first_iter) {
data->first_iter = false;
