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RTOp_TOp_add_scalar.c
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5 // Moocho: Multi-functional Object-Oriented arCHitecture for Optimization
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43 
44 #include "RTOp_TOp_add_scalar.h"
45 #include "RTOp_obj_value_vtbl.h"
46 #include "RTOp_obj_null_vtbl.h"
47 
48 /* Implementation functions for RTOp_RTOp */
49 
50 static int RTOp_TOp_add_scalar_apply_op(
51  const struct RTOp_RTOp_vtbl_t* vtbl, const void* obj_data
52  , const int num_vecs, const struct RTOp_SubVector vecs[]
53  , const int num_targ_vecs, const struct RTOp_MutableSubVector targ_vecs[]
54  , RTOp_ReductTarget targ_obj )
55 {
56  RTOp_value_type alpha = 0.0;
57  RTOp_index_type z_sub_dim;
58  RTOp_value_type *z_val;
59  ptrdiff_t z_val_s;
60  register RTOp_index_type k;
61 
62  /* */
63  /* Validate the input */
64  /* */
65 
66  if( num_vecs != 0 || vecs != NULL )
67  return RTOp_ERR_INVALID_NUM_VECS;
68  if( num_targ_vecs != 1 || targ_vecs == NULL )
69  return RTOp_ERR_INVALID_NUM_TARG_VECS;
70  assert(obj_data);
71 
72  /* */
73  /* Get pointers to data */
74  /* */
75 
76  /* alpha */
77  alpha = *((RTOp_value_type*)obj_data);
78 
79  /* z */
80  z_sub_dim = targ_vecs[0].sub_dim;
81  z_val = targ_vecs[0].values;
82  z_val_s = targ_vecs[0].values_stride;
83 
84  /* */
85  /* Scale the elements */
86  /* */
87 
88  for( k = 0; k < z_sub_dim; ++k, z_val += z_val_s )
89  *z_val += alpha;
90 
91  return 0; /* success? */
92 }
93 
94 /* Virtual function table */
95 const struct RTOp_RTOp_vtbl_t RTOp_TOp_add_scalar_vtbl =
96 {
97  &RTOp_obj_value_vtbl /* use simple scalar value type for object instance data */
98  ,&RTOp_obj_null_vtbl /* use null type for target object */
99  ,"TOp_add_scalar"
100  ,NULL
101  ,RTOp_TOp_add_scalar_apply_op
102  ,NULL
103  ,NULL
104 };
105 
106 /* Class specific functions */
107 
108 int RTOp_TOp_add_scalar_construct( RTOp_value_type alpha, struct RTOp_RTOp* op )
109 {
110  op->vtbl = &RTOp_TOp_add_scalar_vtbl;
111  op->vtbl->obj_data_vtbl->obj_create(NULL,NULL,&op->obj_data);
112  *((RTOp_value_type*)op->obj_data) = alpha;
113  return 0; /* success? */
114 }
115 
116 int RTOp_TOp_add_scalar_destroy( struct RTOp_RTOp* op )
117 {
118  op->vtbl->obj_data_vtbl->obj_free(NULL,NULL,&op->obj_data);
119  op->vtbl = NULL;
120  return 0; /* success? */
121 }
122 
123 int RTOp_TOp_add_scalar_set_alpha( RTOp_value_type alpha, struct RTOp_RTOp* op )
124 {
125  *((RTOp_value_type*)op->obj_data) = alpha;
126  return 0; /* success? */
127 }
int(* obj_create)(const struct RTOp_obj_type_vtbl_t *vtbl, const void *instance_data, void **obj)
Definition: RTOp.h:941
int(* obj_free)(const struct RTOp_obj_type_vtbl_t *vtbl, const void *instance_data, void **obj)
Definition: RTOp.h:1019