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RTOp_TOp_assign_scalar.c
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00001 /*
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00004 // 
00005 // Moocho: Multi-functional Object-Oriented arCHitecture for Optimization
00006 //                  Copyright (2003) Sandia Corporation
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00042 */
00043 
00044 #include "RTOp_TOp_assign_scalar.h"
00045 #include "RTOp_obj_value_vtbl.h"
00046 #include "RTOp_obj_null_vtbl.h"
00047 
00048 /* Implementation functions for RTOp_RTOp */
00049 
00050 static int RTOp_TOp_assign_scalar_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   /* */
00057   /* Get pointers to data */
00058   /* */
00059 
00060   /* alpha */
00061   const RTOp_value_type alpha = *((RTOp_value_type*)obj_data);
00062 
00063   /* z */
00064   RTOp_index_type        z_sub_dim     = targ_vecs[0].sub_dim;
00065   RTOp_value_type        *z_val        = targ_vecs[0].values;
00066   ptrdiff_t              z_val_s       = targ_vecs[0].values_stride;
00067 
00068   register RTOp_index_type k;
00069 
00070   /* */
00071   /* Validate the input */
00072   /* */
00073 
00074   if( num_vecs != 0 || vecs != NULL )
00075     return RTOp_ERR_INVALID_NUM_VECS;
00076   if( num_targ_vecs != 1 || targ_vecs == NULL )
00077     return RTOp_ERR_INVALID_NUM_TARG_VECS;
00078 
00079   /* */
00080   /* Assign the elements */
00081   /* */
00082 
00083   for( k = 0; k < z_sub_dim; ++k, z_val += z_val_s )
00084     *z_val = alpha;
00085 
00086   return 0; /* success? */
00087 }
00088 
00089 /* Virtual function table */
00090 const struct RTOp_RTOp_vtbl_t RTOp_TOp_assign_scalar_vtbl =
00091 {
00092   &RTOp_obj_value_vtbl /* use simple scalar value type for object instance data */
00093   ,&RTOp_obj_null_vtbl /* use null type for target object */
00094   ,"TOp_assign_scalar"
00095   ,NULL /* use default from reduct_vtbl */
00096   ,RTOp_TOp_assign_scalar_apply_op
00097   ,NULL
00098   ,NULL
00099 };
00100 
00101 /* Class specific functions */
00102 
00103 int RTOp_TOp_assign_scalar_construct( RTOp_value_type alpha, struct RTOp_RTOp* op )
00104 {
00105   op->vtbl = &RTOp_TOp_assign_scalar_vtbl;
00106   op->vtbl->obj_data_vtbl->obj_create(NULL,NULL,&op->obj_data);
00107   *((RTOp_value_type*)op->obj_data) = alpha;
00108   return 0; /* success? */
00109 }
00110 
00111 int RTOp_TOp_assign_scalar_destroy( struct RTOp_RTOp* op )
00112 {
00113   op->vtbl->obj_data_vtbl->obj_free(NULL,NULL,&op->obj_data);
00114   op->vtbl = NULL;
00115   return 0; /* success? */
00116 }
00117 
00118 int RTOp_TOp_assign_scalar_set_alpha( RTOp_value_type alpha, struct RTOp_RTOp* op )
00119 {
00120   *((RTOp_value_type*)op->obj_data) = alpha;
00121   return 0; /* success? */
00122 }
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