1 2 extern void cpass(complex *,const complex *,const complex *,unsigned int); 3 extern void upass(complex *,const complex *,const complex *,unsigned int); 4 extern void rpass(real *,const complex *,unsigned int); 5 extern void vpass(real *,const complex *,unsigned int); 6 7 extern const complex d16[]; 8 extern const complex d32[]; 9 extern const complex d64[]; 10 extern const complex d128[]; 11 extern const complex d256[]; 12 extern const complex d512[]; 13 extern const complex d1024[]; 14 extern const complex d2048[]; 15 extern const complex d4096[]; 16 extern const complex d8192[]; 17 extern const complex d16384[]; 18 extern const complex d32768[]; 19 extern const complex d65536[]; 20 21 #define sqrthalf (d16[1].re) 22