commit | author | age
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/* vim: set ts=4 sts=4 sw=4 noet : */ |
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#include"general.h" |
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#include"poly.h" |
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#include<stdlib.h> |
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#include"vertex.h" |
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#include"bond.h" |
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#include<math.h> |
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#include"energy.h" |
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ts_bool poly_assign_filament_xi(ts_vesicle *vesicle, ts_tape *tape){ |
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ts_uint i; |
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for(i=0;i<vesicle->filament_list->n;i++){ |
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vesicle->filament_list->poly[i]->k = tape->xi; |
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} |
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return TS_SUCCESS; |
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} |
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ts_bool poly_assign_spring_const(ts_vesicle *vesicle){ |
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ts_uint i; |
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for(i=0;i<vesicle->poly_list->n;i++){ |
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vesicle->poly_list->poly[i]->k = vesicle->spring_constant; |
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} |
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return TS_SUCCESS; |
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} |
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ts_poly *init_poly(ts_uint n, ts_vertex *grafted_vtx){ |
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ts_poly *poly=(ts_poly *)calloc(1,sizeof(ts_poly)); |
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poly->vlist = init_vertex_list(n); |
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poly->blist = init_bond_list(); |
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if (grafted_vtx!=NULL){ |
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poly->grafted_vtx = grafted_vtx; |
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grafted_vtx->grafted_poly = poly; |
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} |
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ts_uint i; |
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for(i=0;i<n-1;i++){ |
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vtx_add_cneighbour(poly->blist, poly->vlist->vtx[i], poly->vlist->vtx[i+1]); |
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vtx_add_neighbour(poly->vlist->vtx[i+1], poly->vlist->vtx[i]); |
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} |
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for(i=0;i<poly->blist->n;i++){ |
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poly->blist->bond[i]->bond_length=sqrt(vtx_distance_sq(poly->blist->bond[i]->vtx1,poly->blist->bond[i]->vtx2)); |
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bond_energy(poly->blist->bond[i],poly); |
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} |
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return poly; |
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} |
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ts_poly_list *init_poly_list(ts_uint n_poly, ts_uint n_mono, ts_vertex_list *vlist, ts_vesicle *vesicle){ |
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ts_poly_list *poly_list=(ts_poly_list *)calloc(1,sizeof(ts_poly_list)); |
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poly_list->poly = (ts_poly **)calloc(n_poly,sizeof(ts_poly *)); |
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ts_uint i=0,j=0; //idx; |
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ts_uint gvtxi; |
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ts_double xnorm,ynorm,znorm,normlength; |
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ts_double dphi,dh; |
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// Grafting polymers: |
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if (vlist!=NULL){ |
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if (n_poly > vlist->n){fatal("Number of polymers larger than numbero f vertices on a vesicle.",310);} |
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while(i<n_poly){ |
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gvtxi = rand() % vlist->n; |
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if (vlist->vtx[gvtxi]->grafted_poly == NULL){ |
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poly_list->poly[i] = init_poly(n_mono, vlist->vtx[gvtxi]); |
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i++; |
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} |
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} |
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} |
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else |
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{ |
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for(i=0;i<n_poly;i++){ |
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poly_list->poly[i] = init_poly(n_mono, NULL); |
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} |
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} |
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poly_list->n = n_poly; |
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if (vlist!=NULL){ |
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/* Make straight grafted poylmers normal to membrane (polymer brush). Dist. between poly vertices put to 1*/ |
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ts_int intpoly=vesicle->tape->internal_poly; |
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for (i=0;i<poly_list->n;i++){ |
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xnorm=0.0; |
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ynorm=0.0; |
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znorm=0.0; |
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for (j=0;j<poly_list->poly[i]->grafted_vtx->tristar_no;j++){ |
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xnorm-=poly_list->poly[i]->grafted_vtx->tristar[j]->xnorm; |
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ynorm-=poly_list->poly[i]->grafted_vtx->tristar[j]->ynorm; |
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znorm-=poly_list->poly[i]->grafted_vtx->tristar[j]->znorm; |
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} |
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normlength=sqrt(xnorm*xnorm+ynorm*ynorm+znorm*znorm); |
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if(intpoly && i%2){ |
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normlength=-normlength; |
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} |
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xnorm=xnorm/normlength; |
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ynorm=ynorm/normlength; |
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znorm=znorm/normlength; |
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for (j=0;j<poly_list->poly[i]->vlist->n;j++){ |
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poly_list->poly[i]->vlist->vtx[j]->x = poly_list->poly[i]->grafted_vtx->x + xnorm*(ts_double)(j+1); |
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poly_list->poly[i]->vlist->vtx[j]->y = poly_list->poly[i]->grafted_vtx->y + ynorm*(ts_double)(j+1); |
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poly_list->poly[i]->vlist->vtx[j]->z = poly_list->poly[i]->grafted_vtx->z + znorm*(ts_double)(j+1); |
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} |
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} |
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} |
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else |
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{ |
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/* Make filaments inside the vesicle. Helix with radius... Dist. between poly vertices put to 1*/ |
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ts_double a,R,H,tantheta,h,r,phi,A0=1.2; |
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a = A0*(ts_double)vesicle->nshell; |
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R = A0*((ts_double)vesicle->nshell)/(2.0*sin(M_PI/5.0)); |
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H = sqrt(a*a - R*R); |
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tantheta = sqrt(R*R - a*a/4.0)/H; |
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h = -H + sqrt(vesicle->clist->dmin_interspecies)*1.5; |
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r = (H-fabs(h))*tantheta - sqrt(vesicle->clist->dmin_interspecies)*1.5; |
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dphi = 2.0*asin(1.0/2.0/r)*1.001; |
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dh = dphi/2.0/M_PI*1.001; |
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phi=0.0; |
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for(i=0;i<poly_list->n;i++){ |
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for (j=0;j<poly_list->poly[i]->vlist->n;j++){ |
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h = h + dh; |
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r = (H-fabs(h))*tantheta - sqrt(vesicle->clist->dmin_interspecies)*1.5; |
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dphi = 2.0*asin(1.0/2.0/r)*1.001; |
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dh = dphi/2.0/M_PI*1.001; |
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phi+=dphi; |
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//ji = j + i*poly_list->poly[i]->vlist->n; |
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poly_list->poly[i]->vlist->vtx[j]->x = r*cos(phi); |
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poly_list->poly[i]->vlist->vtx[j]->y = r*sin(phi); |
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poly_list->poly[i]->vlist->vtx[j]->z = h;// ji*dh - (dh*poly_list->n*poly_list->poly[i]->vlist->n/2.0); |
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} |
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} |
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} |
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//index correction for polymeres. Important, since each vtx has to have unique id |
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/* idx=vlist->n; |
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for(i=0;i<n_poly;i++){ |
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for(j=0;j<n_mono;j++,idx++){ |
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poly_list->poly[i]->vlist->vtx[j]->idx=idx; |
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} |
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} |
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*/ |
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return poly_list; |
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} |
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ts_bool poly_free(ts_poly *poly){ |
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if (poly->grafted_vtx!=NULL){ |
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poly->grafted_vtx->grafted_poly=NULL; |
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} |
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vtx_list_free(poly->vlist); |
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bond_list_free(poly->blist); |
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free(poly); |
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return TS_SUCCESS; |
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} |
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ts_bool poly_list_free(ts_poly_list *poly_list){ |
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ts_uint i; |
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for(i=0;i<poly_list->n;i++){ |
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poly_free(poly_list->poly[i]); |
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} |
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free(poly_list->poly); |
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free(poly_list); |
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return TS_SUCCESS; |
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} |
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ts_poly *remove_poly_with_index(ts_poly_list *poly_list, ts_uint idx){ |
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ts_uint i; |
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ts_poly *removed_poly=poly_list->poly[idx]; |
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poly_list->n--; //decrease the total number of polymeres |
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for(i=idx;i<poly_list->n;i++){ //move the rest of the polymeres up. |
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poly_list->poly[i]=poly_list->poly[i+1]; |
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// poly_list->poly[idx]->idx=idx; |
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} |
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return removed_poly; |
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} |
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ts_bool remove_random_polymeres(ts_poly_list *poly_list, ts_uint number){ |
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ts_uint i, idx; |
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ts_poly *poly; |
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ts_poly **new_poly_array; |
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if(number>poly_list->n) fatal("The number of polymeres to be removed from the list is greater than the number of total polymeres in the list",999); |
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for(i=number;i>0;i--){ |
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idx=rand() % poly_list->n; |
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poly=remove_poly_with_index(poly_list, idx); |
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poly_free(poly); |
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} |
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printf("Addr before %ld\n", (long)poly_list->poly); |
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new_poly_array=(ts_poly **)calloc(poly_list->n,sizeof(ts_poly *)); |
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for(i=0;i<poly_list->n;i++){ |
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new_poly_array[i]=poly_list->poly[i]; |
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} |
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free(poly_list->poly); |
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poly_list->poly=new_poly_array; |
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printf("Addr after %ld\n", (long)poly_list->poly); |
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return TS_SUCCESS; |
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} |
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