The DSPLib symmetric FIR Filter kernels are created using the following array declaration. The pre-processor #if statement is used as a workaround here because in C++ each array element requires its own template parameters, even if they are identical:
FirGraph(): FIR_ARRAY {
dsplib::fir::sr_sym::fir_sr_sym_graph<T_DATA, T_COEF, N_FIR_TAPS, FIR_DOWNSHIFT, FIR_ROUND_MODE, FIR_WINDOW_SIZE, N_AIES_PER_FIR> (FIR_TAP_COEFS)
#if (N_FIR_FILTERS >= 2)
, dsplib::fir::sr_sym::fir_sr_sym_graph<T_DATA, T_COEF, N_FIR_TAPS, FIR_DOWNSHIFT, FIR_ROUND_MODE, FIR_WINDOW_SIZE, N_AIES_PER_FIR> (FIR_TAP_COEFS)
#endif
#if (N_FIR_FILTERS >= 3)
, dsplib::fir::sr_sym::fir_sr_sym_graph<T_DATA, T_COEF, N_FIR_TAPS, FIR_DOWNSHIFT, FIR_ROUND_MODE, FIR_WINDOW_SIZE, N_AIES_PER_FIR> (FIR_TAP_COEFS)
#endif
<... etc>