RTOpPack: Extra C/C++ Code for Vector Reduction/Transformation Operators  Version of the Day
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Groups Pages
RTOp_ROp_get_ele.c
1 /*
2 // @HEADER
3 // ***********************************************************************
4 //
5 // Moocho: Multi-functional Object-Oriented arCHitecture for Optimization
6 // Copyright (2003) Sandia Corporation
7 //
8 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
9 // license for use of this work by or on behalf of the U.S. Government.
10 //
11 // Redistribution and use in source and binary forms, with or without
12 // modification, are permitted provided that the following conditions are
13 // met:
14 //
15 // 1. Redistributions of source code must retain the above copyright
16 // notice, this list of conditions and the following disclaimer.
17 //
18 // 2. Redistributions in binary form must reproduce the above copyright
19 // notice, this list of conditions and the following disclaimer in the
20 // documentation and/or other materials provided with the distribution.
21 //
22 // 3. Neither the name of the Corporation nor the names of the
23 // contributors may be used to endorse or promote products derived from
24 // this software without specific prior written permission.
25 //
26 // THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
27 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
30 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
31 // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
32 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
33 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
34 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
35 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
36 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37 //
38 // Questions? Contact Roscoe A. Bartlett (rabartl@sandia.gov)
39 //
40 // ***********************************************************************
41 // @HEADER
42 */
43 
44 #include "RTOp_ROp_get_ele.h"
45 #include "RTOp_obj_index_vtbl.h"
46 #include "RTOp_obj_value_vtbl.h"
47 #include "RTOp_reduct_sum_value.h"
48 
49 /* Implementation functions */
50 
51 static int RTOp_ROp_get_ele_apply_op(
52  const struct RTOp_RTOp_vtbl_t* vtbl, const void* obj_data
53  , const int num_vecs, const struct RTOp_SubVector vecs[]
54  , const int num_targ_vecs, const struct RTOp_MutableSubVector targ_vecs[]
55  , RTOp_ReductTarget targ_obj )
56 {
57  RTOp_index_type i;
58  RTOp_index_type global_offset;
59  RTOp_index_type sub_dim;
60  const RTOp_value_type *v0_val;
61  ptrdiff_t v0_val_s;
62 
63  /* */
64  /* Validate the input */
65  /* */
66  if( num_vecs != 1 )
67  return RTOp_ERR_INVALID_NUM_VECS;
68  if( num_targ_vecs != 0 )
69  return RTOp_ERR_INVALID_NUM_TARG_VECS;
70  assert(targ_obj);
71  assert(vecs);
72 
73  /* */
74  /* Get pointers to data */
75  /* */
76 
77  /* i */
78  i = *((RTOp_index_type*)obj_data);
79 
80  /* v0 */
81  global_offset = vecs[0].global_offset;
82  sub_dim = vecs[0].sub_dim;
83  v0_val = vecs[0].values;
84  v0_val_s = vecs[0].values_stride;
85 
86  /* */
87  /* Lookup the element! */
88  /* */
89 
90  if( i < global_offset + 1 || global_offset + sub_dim < i )
91  return 0; /* The element we are looking for is not here. */
92 
93  *((RTOp_value_type*)targ_obj) = *(v0_val+v0_val_s*(i-global_offset-1));
94 
95  return 0; /* success? */
96 }
97 
98 /* Virtual function table */
99 const struct RTOp_RTOp_vtbl_t RTOp_ROp_get_ele_vtbl =
100 {
101  &RTOp_obj_index_vtbl /* use simple scalar index type for object instance data */
102  ,&RTOp_obj_value_vtbl /* use simple scalar value type for target object */
103  ,"ROp_get_ele"
104  ,NULL
105  ,RTOp_ROp_get_ele_apply_op
106  ,RTOp_reduct_sum_value
107  ,RTOp_get_reduct_sum_value_op
108 };
109 
110 /* Class specific functions */
111 
112 int RTOp_ROp_get_ele_construct( RTOp_index_type i, struct RTOp_RTOp* op )
113 {
114  op->vtbl = &RTOp_ROp_get_ele_vtbl;
115  op->vtbl->obj_data_vtbl->obj_create(NULL,NULL,&op->obj_data);
116  *((RTOp_index_type*)op->obj_data) = i;
117  return 0;
118 }
119 
120 int RTOp_ROp_get_ele_set_i( RTOp_index_type i, struct RTOp_RTOp* op )
121 {
122  *((RTOp_index_type*)op->obj_data) = i;
123  return 0;
124 }
125 
126 int RTOp_ROp_get_ele_destroy( struct RTOp_RTOp* op )
127 {
128  op->vtbl->obj_data_vtbl->obj_free(NULL,NULL,&op->obj_data);
129  op->vtbl = NULL;
130  return 0;
131 }
132 
133 RTOp_value_type RTOp_ROp_get_ele_val(RTOp_ReductTarget targ_obj)
134 {
135  return *((RTOp_value_type*)targ_obj);
136 }
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