pfafft.c

该程序是用vc开发的对动态数组进行管理的DLL

		}
		j11 = j10+jinc;
		if (j11>=jmax) j11 = j11-jmax;
		j12 = j11+jinc;
		if (j12>=jmax) j12 = j12-jmax;

		/* if factor is 13 */
		if (ifac==13) {
			if (mu==1) {
				c1 = P885;
				c2 = P568;
				c3 = P120;
				c4 = -P354;
				c5 = -P748;
				c6 = -P970;
				c7 = P464;
				c8 = P822;
				c9 = P992;
				c10 = P935;
				c11 = P663;
				c12 = P239;
			} else if (mu==2) {
				c1 = P568;
				c2 = -P354;
				c3 = -P970;
				c4 = -P748;
				c5 = P120;
				c6 = P885;
				c7 = P822;
				c8 = P935;
				c9 = P239;
				c10 = -P663;
				c11 = -P992;
				c12 = -P464;
			} else if (mu==3) {
				c1 = P120;
				c2 = -P970;
				c3 = -P354;
				c4 = P885;
				c5 = P568;
				c6 = -P748;
				c7 = P992;
				c8 = P239;
				c9 = -P935;
				c10 = -P464;
				c11 = P822;
				c12 = P663;
			} else if (mu==4) {
				c1 = -P354;
				c2 = -P748;
				c3 = P885;
				c4 = P120;
				c5 = -P970;
				c6 = P568;
				c7 = P935;
				c8 = -P663;
				c9 = -P464;
				c10 = P992;
				c11 = -P239;
				c12 = -P822;
			} else if (mu==5) {
				c1 = -P748;
				c2 = P120;
				c3 = P568;
				c4 = -P970;
				c5 = P885;
				c6 = -P354;
				c7 = P663;
				c8 = -P992;
				c9 = P822;
				c10 = -P239;
				c11 = -P464;
				c12 = P935;
			} else if (mu==6) {
				c1 = -P970;
				c2 = P885;
				c3 = -P748;
				c4 = P568;
				c5 = -P354;
				c6 = P120;
				c7 = P239;
				c8 = -P464;
				c9 = P663;
				c10 = -P822;
				c11 = P935;
				c12 = -P992;
			} else if (mu==7) {
				c1 = -P970;
				c2 = P885;
				c3 = -P748;
				c4 = P568;
				c5 = -P354;
				c6 = P120;
				c7 = -P239;
				c8 = P464;
				c9 = -P663;
				c10 = P822;
				c11 = -P935;
				c12 = P992;
			} else if (mu==8) {
				c1 = -P748;
				c2 = P120;
				c3 = P568;
				c4 = -P970;
				c5 = P885;
				c6 = -P354;
				c7 = -P663;
				c8 = P992;
				c9 = -P822;
				c10 = P239;
				c11 = P464;
				c12 = -P935;
			} else if (mu==9) {
				c1 = -P354;
				c2 = -P748;
				c3 = P885;
				c4 = P120;
				c5 = -P970;
				c6 = P568;
				c7 = -P935;
				c8 = P663;
				c9 = P464;
				c10 = -P992;
				c11 = P239;
				c12 = P822;
			} else if (mu==10) {
				c1 = P120;
				c2 = -P970;
				c3 = -P354;
				c4 = P885;
				c5 = P568;
				c6 = -P748;
				c7 = -P992;
				c8 = -P239;
				c9 = P935;
				c10 = P464;
				c11 = -P822;
				c12 = -P663;
			} else if (mu==11) {
				c1 = P568;
				c2 = -P354;
				c3 = -P970;
				c4 = -P748;
				c5 = P120;
				c6 = P885;
				c7 = -P822;
				c8 = -P935;
				c9 = -P239;
				c10 = P663;
				c11 = P992;
				c12 = P464;
			} else {
				c1 = P885;
				c2 = P568;
				c3 = P120;
				c4 = -P354;
				c5 = -P748;
				c6 = -P970;
				c7 = -P464;
				c8 = -P822;
				c9 = -P992;
				c10 = -P935;
				c11 = -P663;
				c12 = -P239;
			}
			for (l=0; l<m; l++) {
				t1r = z[j01]+z[j12];
				t1i = z[j01+1]+z[j12+1];
				t2r = z[j2]+z[j11];
				t2i = z[j2+1]+z[j11+1];
				t3r = z[j3]+z[j10];
				t3i = z[j3+1]+z[j10+1];
				t4r = z[j4]+z[j9];
				t4i = z[j4+1]+z[j9+1];
				t5r = z[j5]+z[j8];
				t5i = z[j5+1]+z[j8+1];
				t6r = z[j6]+z[j7];
				t6i = z[j6+1]+z[j7+1];
				t7r = z[j01]-z[j12];
				t7i = z[j01+1]-z[j12+1];
				t8r = z[j2]-z[j11];
				t8i = z[j2+1]-z[j11+1];
				t9r = z[j3]-z[j10];
				t9i = z[j3+1]-z[j10+1];
				t10r = z[j4]-z[j9];
				t10i = z[j4+1]-z[j9+1];
				t11r = z[j5]-z[j8];
				t11i = z[j5+1]-z[j8+1];
				t12r = z[j6]-z[j7];
				t12i = z[j6+1]-z[j7+1];
				t13r = z[j00]-0.5f*t6r;
				t13i = z[j00+1]-0.5f*t6i;
				t14r = t1r-t6r;
				t14i = t1i-t6i;
				t15r = t2r-t6r;
				t15i = t2i-t6i;
				t16r = t3r-t6r;
				t16i = t3i-t6i;
				t17r = t4r-t6r;
				t17i = t4i-t6i;
				t18r = t5r-t6r;
				t18i = t5i-t6i;
				y1r = t13r+c1*t14r+c2*t15r+c3*t16r+c4*t17r+c5*t18r;
				y1i = t13i+c1*t14i+c2*t15i+c3*t16i+c4*t17i+c5*t18i;
				y2r = t13r+c2*t14r+c4*t15r+c6*t16r+c5*t17r+c3*t18r;
				y2i = t13i+c2*t14i+c4*t15i+c6*t16i+c5*t17i+c3*t18i;
				y3r = t13r+c3*t14r+c6*t15r+c4*t16r+c1*t17r+c2*t18r;
				y3i = t13i+c3*t14i+c6*t15i+c4*t16i+c1*t17i+c2*t18i;
				y4r = t13r+c4*t14r+c5*t15r+c1*t16r+c3*t17r+c6*t18r;
				y4i = t13i+c4*t14i+c5*t15i+c1*t16i+c3*t17i+c6*t18i;
				y5r = t13r+c5*t14r+c3*t15r+c2*t16r+c6*t17r+c1*t18r;
				y5i = t13i+c5*t14i+c3*t15i+c2*t16i+c6*t17i+c1*t18i;
				y6r = t13r+c6*t14r+c1*t15r+c5*t16r+c2*t17r+c4*t18r;
				y6i = t13i+c6*t14i+c1*t15i+c5*t16i+c2*t17i+c4*t18i;
				y7r = c12*t7r-c7*t8r+c11*t9r-c8*t10r+c10*t11r-c9*t12r;
				y7i = c12*t7i-c7*t8i+c11*t9i-c8*t10i+c10*t11i-c9*t12i;
				y8r = c11*t7r-c9*t8r+c8*t9r-c12*t10r-c7*t11r+c10*t12r;
				y8i = c11*t7i-c9*t8i+c8*t9i-c12*t10i-c7*t11i+c10*t12i;
				y9r = c10*t7r-c11*t8r-c7*t9r+c9*t10r-c12*t11r-c8*t12r;
				y9i = c10*t7i-c11*t8i-c7*t9i+c9*t10i-c12*t11i-c8*t12i;
				y10r = c9*t7r+c12*t8r-c10*t9r-c7*t10r+c8*t11r+c11*t12r;
				y10i = c9*t7i+c12*t8i-c10*t9i-c7*t10i+c8*t11i+c11*t12i;
				y11r = c8*t7r+c10*t8r+c12*t9r-c11*t10r-c9*t11r-c7*t12r;
				y11i = c8*t7i+c10*t8i+c12*t9i-c11*t10i-c9*t11i-c7*t12i;
				y12r = c7*t7r+c8*t8r+c9*t9r+c10*t10r+c11*t11r+c12*t12r;
				y12i = c7*t7i+c8*t8i+c9*t9i+c10*t10i+c11*t11i+c12*t12i;
				z[j00] = z[j00]+t1r+t2r+t3r+t4r+t5r+t6r;
				z[j00+1] = z[j00+1]+t1i+t2i+t3i+t4i+t5i+t6i;
				z[j01] = y1r-y12i;
				z[j01+1] = y1i+y12r;
				z[j2] = y2r-y11i;
				z[j2+1] = y2i+y11r;
				z[j3] = y3r-y10i;
				z[j3+1] = y3i+y10r;
				z[j4] = y4r-y9i;
				z[j4+1] = y4i+y9r;
				z[j5] = y5r-y8i;
				z[j5+1] = y5i+y8r;
				z[j6] = y6r-y7i;
				z[j6+1] = y6i+y7r;
				z[j7] = y6r+y7i;
				z[j7+1] = y6i-y7r;
				z[j8] = y5r+y8i;
				z[j8+1] = y5i-y8r;
				z[j9] = y4r+y9i;
				z[j9+1] = y4i-y9r;
				z[j10] = y3r+y10i;
				z[j10+1] = y3i-y10r;
				z[j11] = y2r+y11i;
				z[j11+1] = y2i-y11r;
				z[j12] = y1r+y12i;
				z[j12+1] = y1i-y12r;
				jt = j12+2;
				j12 = j11+2;
				j11 = j10+2;
				j10 = j9+2;
				j9 = j8+2;
				j8 = j7+2;
				j7 = j6+2;
				j6 = j5+2;
				j5 = j4+2;
				j4 = j3+2;
				j3 = j2+2;
				j2 = j01+2;
				j01 = j00+2;
				j00 = jt;
			}
			continue;
		}
		j13 = j12+jinc;
		if (j13>=jmax) j13 = j13-jmax;
		j14 = j13+jinc;
		if (j14>=jmax) j14 = j14-jmax;
		j15 = j14+jinc;
		if (j15>=jmax) j15 = j15-jmax;

		/* if factor is 16 */
		if (ifac==16) {
			if (mu==1) {
				c1 = 1.0;
				c2 = P923;
				c3 = P382;
				c4 = P707;
			} else if (mu==3) {
				c1 = -1.0;
				c2 = P382;
				c3 = P923;
				c4 = -P707;
			} else if (mu==5) {
				c1 = 1.0;
				c2 = -P382;
				c3 = P923;
				c4 = -P707;
			} else if (mu==7) {
				c1 = -1.0;
				c2 = -P923;
				c3 = P382;
				c4 = P707;
			} else if (mu==9) {
				c1 = 1.0;
				c2 = -P923;
				c3 = -P382;
				c4 = P707;
			} else if (mu==11) {
				c1 = -1.0;
				c2 = -P382;
				c3 = -P923;
				c4 = -P707;
			} else if (mu==13) {
				c1 = 1.0;
				c2 = P382;
				c3 = -P923;
				c4 = -P707;
			} else {
				c1 = -1.0;
				c2 = P923;
				c3 = -P382;
				c4 = P707;
			}
			c5 = c1*c4;
			c6 = c1*c3;
			c7 = c1*c2;
			for (l=0; l<m; l++) {
				t1r = z[j00]+z[j8];
				t1i = z[j00+1]+z[j8+1];
				t2r = z[j4]+z[j12];
				t2i = z[j4+1]+z[j12+1];
				t3r = z[j00]-z[j8];
				t3i = z[j00+1]-z[j8+1];
				t4r = c1*(z[j4]-z[j12]);
				t4i = c1*(z[j4+1]-z[j12+1]);
				t5r = t1r+t2r;
				t5i = t1i+t2i;
				t6r = t1r-t2r;
				t6i = t1i-t2i;
				t7r = z[j01]+z[j9];
				t7i = z[j01+1]+z[j9+1];
				t8r = z[j5]+z[j13];
				t8i = z[j5+1]+z[j13+1];
				t9r = z[j01]-z[j9];
				t9i = z[j01+1]-z[j9+1];
				t10r = z[j5]-z[j13];
				t10i = z[j5+1]-z[j13+1];
				t11r = t7r+t8r;
				t11i = t7i+t8i;
				t12r = t7r-t8r;
				t12i = t7i-t8i;
				t13r = z[j2]+z[j10];
				t13i = z[j2+1]+z[j10+1];
				t14r = z[j6]+z[j14];
				t14i = z[j6+1]+z[j14+1];
				t15r = z[j2]-z[j10];
				t15i = z[j2+1]-z[j10+1];
				t16r = z[j6]-z[j14];
				t16i = z[j6+1]-z[j14+1];
				t17r = t13r+t14r;
				t17i = t13i+t14i;
				t18r = c4*(t15r-t16r);
				t18i = c4*(t15i-t16i);
				t19r = c5*(t15r+t16r);
				t19i = c5*(t15i+t16i);
				t20r = c1*(t13r-t14r);
				t20i = c1*(t13i-t14i);
				t21r = z[j3]+z[j11];
				t21i = z[j3+1]+z[j11+1];
				t22r = z[j7]+z[j15];
				t22i = z[j7+1]+z[j15+1];
				t23r = z[j3]-z[j11];
				t23i = z[j3+1]-z[j11+1];
				t24r = z[j7]-z[j15];
				t24i = z[j7+1]-z[j15+1];
				t25r = t21r+t22r;
				t25i = t21i+t22i;
				t26r = t21r-t22r;
				t26i = t21i-t22i;
				t27r = t9r+t24r;
				t27i = t9i+t24i;
				t28r = t10r+t23r;
				t28i = t10i+t23i;
				t29r = t9r-t24r;
				t29i = t9i-t24i;
				t30r = t10r-t23r;
				t30i = t10i-t23i;
				t31r = t5r+t17r;
				t31i = t5i+t17i;
				t32r = t11r+t25r;
				t32i = t11i+t25i;
				t33r = t3r+t18r;
				t33i = t3i+t18i;
				t34r = c2*t29r-c6*t30r;
				t34i = c2*t29i-c6*t30i;
				t35r = t3r-t18r;
				t35i = t3i-t18i;
				t36r = c7*t27r-c3*t28r;
				t36i = c7*t27i-c3*t28i;
				t37r = t4r+t19r;
				t37i = t4i+t19i;
				t38r = c3*t27r+c7*t28r;
				t38i = c3*t27i+c7*t28i;
				t39r = t4r-t19r;
				t39i = t4i-t19i;
				t40r = c6*t29r+c2*t30r;
				t40i = c6*t29i+c2*t30i;
				t41r = c4*(t12r-t26r);
				t41i = c4*(t12i-t26i);
				t42r = c5*(t12r+t26r);
				t42i = c5*(t12i+t26i);
				y1r = t33r+t34r;
				y1i = t33i+t34i;
				y2r = t6r+t41r;
				y2i = t6i+t41i;
				y3r = t35r+t40r;
				y3i = t35i+t40i;
				y4r = t5r-t17r;
				y4i = t5i-t17i;
				y5r = t35r-t40r;
				y5i = t35i-t40i;
				y6r = t6r-t41r;
				y6i = t6i-t41i;
				y7r = t33r-t34r;
				y7i = t33i-t34i;
				y9r = t38r-t37r;
				y9i = t38i-t37i;
				y10r = t42r-t20r;
				y10i = t42i-t20i;
				y11r = t36r+t39r;
				y11i = t36i+t39i;
				y12r = c1*(t11r-t25r);
				y12i = c1*(t11i-t25i);
				y13r = t36r-t39r;
				y13i = t36i-t39i;
				y14r = t42r+t20r;
				y14i = t42i+t20i;
				y15r = t38r+t37r;
				y15i = t38i+t37i;
				z[j00] = t31r+t32r;
				z[j00+1] = t31i+t32i;
				z[j01] = y1r-y15i;
				z[j01+1] = y1i+y15r;
				z[j2] = y2r-y14i;
				z[j2+1] = y2i+y14r;
				z[j3] = y3r-y13i;
				z[j3+1] = y3i+y13r;
				z[j4] = y4r-y12i;
				z[j4+1] = y4i+y12r;
				z[j5] = y5r-y11i;
				z[j5+1] = y5i+y11r;
				z[j6] = y6r-y10i;
				z[j6+1] = y6i+y10r;
				z[j7] = y7r-y9i;
				z[j7+1] = y7i+y9r;
				z[j8] = t31r-t32r;
				z[j8+1] = t31i-t32i;
				z[j9] = y7r+y9i;
				z[j9+1] = y7i-y9r;
				z[j10] = y6r+y10i;
				z[j10+1] = y6i-y10r;
				z[j11] = y5r+y11i;
				z[j11+1] = y5i-y11r;
				z[j12] = y4r+y12i;
				z[j12+1] = y4i-y12r;
				z[j13] = y3r+y13i;
				z[j13+1] = y3i-y13r;
				z[j14] = y2r+y14i;
				z[j14+1] = y2i-y14r;
				z[j15] = y1r+y15i;
				z[j15+1] = y1i-y15r;
				jt = j15+2;
				j15 = j14+2;
				j14 = j13+2;
				j13 = j12+2;
				j12 = j11+2;
				j11 = j10+2;
				j10 = j9+2;