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RTOp_TOp_set_ele.c
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00001 /*
00002 // @HEADER
00003 // ***********************************************************************
00004 // 
00005 // Moocho: Multi-functional Object-Oriented arCHitecture for Optimization
00006 //                  Copyright (2003) Sandia Corporation
00007 // 
00008 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
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00042 */
00043 
00044 #include "RTOp_TOp_set_ele.h"
00045 #include "RTOp_obj_value_index_vtbl.h"
00046 #include "RTOp_obj_null_vtbl.h"
00047 
00048 /* Implementation functions for RTOp_RTOp */
00049 
00050 static int RTOp_TOp_set_ele_apply_op(
00051   const struct RTOp_RTOp_vtbl_t* vtbl, const void* obj_data
00052   , const int num_vecs, const struct RTOp_SubVector vecs[]
00053   , const int num_targ_vecs, const struct RTOp_MutableSubVector targ_vecs[]
00054   , RTOp_ReductTarget targ_obj )
00055 {
00056   const struct RTOp_value_index_type  *val_ind  = NULL;
00057   RTOp_value_type                     alpha;
00058   RTOp_value_type                     i;
00059   RTOp_index_type  global_offset;
00060   RTOp_index_type  z_sub_dim;
00061   RTOp_value_type  *z_val = NULL;
00062   ptrdiff_t        z_val_s;
00063 
00064   /* */
00065   /* Validate the input */
00066   /* */
00067   if( num_vecs != 0 || vecs != NULL )
00068     return RTOp_ERR_INVALID_NUM_VECS;
00069   if( num_targ_vecs != 1 || targ_vecs == NULL )
00070     return RTOp_ERR_INVALID_NUM_TARG_VECS;
00071 
00072   /* */
00073   /* Get pointers to data */
00074   /* */
00075 
00076   /* alpha, i */
00077   val_ind  = (const struct RTOp_value_index_type*)obj_data;
00078   alpha    = val_ind->value;
00079   i        = val_ind->index;
00080 
00081   /* z */
00082   global_offset = targ_vecs[0].global_offset;
00083   z_sub_dim     = targ_vecs[0].sub_dim;
00084   z_val         = targ_vecs[0].values;
00085   z_val_s       = targ_vecs[0].values_stride;
00086 
00087   /* */
00088   /* Set the element? */
00089   /* */
00090 
00091   if( i < global_offset + 1 || global_offset + z_sub_dim < i )
00092     return 0; /* The element we are looking for is not here. */
00093 
00094   /* It is not hard to find the element */
00095   z_val[(ptrdiff_t)(z_val_s * (i-global_offset-1))] = alpha;
00096 
00097   return 0; /* success? */
00098 }
00099 
00100 /* Virtual function table */
00101 const struct RTOp_RTOp_vtbl_t RTOp_TOp_set_ele_vtbl =
00102 {
00103   &RTOp_obj_value_index_vtbl
00104   ,&RTOp_obj_null_vtbl /* use null type for reduction target object */
00105   ,"TOp_set_ele"
00106   ,NULL /* use default from reduct_vtbl */
00107   ,RTOp_TOp_set_ele_apply_op
00108   ,NULL
00109   ,NULL
00110 };
00111 
00112 
00113 /* Class specific functions */
00114 
00115 int RTOp_TOp_set_ele_construct( RTOp_index_type i, RTOp_value_type alpha
00116   , struct RTOp_RTOp* op )
00117 {
00118   struct RTOp_value_index_type *val_ind = NULL;
00119   op->vtbl = &RTOp_TOp_set_ele_vtbl;
00120   op->vtbl->obj_data_vtbl->obj_create(NULL,NULL,&op->obj_data);
00121   val_ind = (struct RTOp_value_index_type*)op->obj_data;
00122   val_ind->value  = alpha;
00123   val_ind->index  = i;
00124   return 0; /* success? */
00125 }
00126 
00127 int RTOp_TOp_set_ele_destroy( struct RTOp_RTOp* op )
00128 {
00129   op->vtbl->obj_data_vtbl->obj_free(NULL,NULL,&op->obj_data);
00130   op->vtbl      = NULL;
00131   return 0; /* success? */
00132 }
00133 
00134 int RTOp_TOp_set_ele_set_i_alpha( RTOp_index_type i, RTOp_value_type alpha
00135   , struct RTOp_RTOp* op )
00136 {
00137   struct RTOp_value_index_type
00138     *val_ind = (struct RTOp_value_index_type*)op->obj_data;
00139   val_ind->value  = alpha;
00140   val_ind->index  = i;
00141   return 0; /* success? */
00142 }
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