26 #define CSWAP(x,y) {double _Complex * NFFT_SWAP_temp__; \
27 NFFT_SWAP_temp__=(x); (x)=(y); (y)=NFFT_SWAP_temp__;}
33 double _Complex *slow;
37 M_total=10000;N_total=1;
39 slow=(
double _Complex*)nfft_malloc(M_total*
sizeof(
double _Complex));
51 nnfft_init_guru(&my_plan, d, N_total, M_total, N, n, m,
53 MALLOC_X| MALLOC_V| MALLOC_F_HAT| MALLOC_F);
57 nfft_vrand_shifted_unit_double(my_plan.x, d*my_plan.M_total);
58 nfft_vrand_shifted_unit_double(my_plan.v, d*my_plan.N_total);
61 if(my_plan.nnfft_flags & PRE_PSI)
62 nnfft_precompute_psi(&my_plan);
64 if(my_plan.nnfft_flags & PRE_LIN_PSI)
65 nnfft_precompute_lin_psi(&my_plan);
67 if(my_plan.nnfft_flags & PRE_FULL_PSI)
68 nnfft_precompute_full_psi(&my_plan);
71 if(my_plan.nnfft_flags & PRE_PHI_HUT)
72 nnfft_precompute_phi_hut(&my_plan);
75 nfft_vrand_unit_complex(my_plan.f_hat, my_plan.N_total);
78 nnfft_trafo_direct(&my_plan);
80 CSWAP(my_plan.f,slow);
83 nnfft_trafo(&my_plan);
86 nfft_error_l_infty_complex(slow, my_plan.f, M_total),
87 nfft_error_l_infty_1_complex(slow, my_plan.f, M_total, my_plan.f_hat,
91 nnfft_finalize(&my_plan);
#define CSWAP(x, y)
Swap two vectors.