RTOp_TOp_inv_of_difference.c

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
00009 // license for use of this work by or on behalf of the U.S. Government.
00010 // 
00011 // This library is free software; you can redistribute it and/or modify
00012 // it under the terms of the GNU Lesser General Public License as
00013 // published by the Free Software Foundation; either version 2.1 of the
00014 // License, or (at your option) any later version.
00015 //  
00016 // This library is distributed in the hope that it will be useful, but
00017 // WITHOUT ANY WARRANTY; without even the implied warranty of
00018 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00019 // Lesser General Public License for more details.
00020 //  
00021 // You should have received a copy of the GNU Lesser General Public
00022 // License along with this library; if not, write to the Free Software
00023 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
00024 // USA
00025 // Questions? Contact Roscoe A. Bartlett (rabartl@sandia.gov) 
00026 // 
00027 // ***********************************************************************
00028 // @HEADER
00029 */
00030 
00031 /* */
00032 /* Note: This file was created automatically by 'new_rtop.pl' */
00033 /*       on 6/27/2002 at 20:41 */
00034 /* */
00035 
00036 #define max(a,b) ( (a) > (b) ? (a) : (b) )
00037 #define min(a,b) ( (a) < (b) ? (a) : (b) )
00038 
00039 #include "RTOp_TOp_inv_of_difference.h"
00040 #include "RTOp_obj_value_vtbl.h"  /* vtbl for operator object instance data */
00041 
00042 
00043 
00044 /* Implementation functions for RTOp_RTOp */
00045 
00046 static int RTOp_TOp_inv_of_difference_apply_op(
00047   const struct RTOp_RTOp_vtbl_t* vtbl, const void* obj_data
00048   , const int num_vecs, const struct RTOp_SubVector vecs[]
00049   , const int num_targ_vecs, const struct RTOp_MutableSubVector targ_vecs[]
00050   , RTOp_ReductTarget reduct_obj )
00051 {
00052   /* */
00053   /* Declare local variables */
00054   /* */
00055 
00056     /* Access to the operator object instance data */
00057     RTOp_value_type *alpha = (RTOp_value_type*)obj_data;
00058     /* Vector data */
00059     RTOp_index_type           sub_dim;
00060     /* z0 */
00061     RTOp_value_type           *z0_val;
00062     ptrdiff_t                 z0_val_s;
00063     /* v0 */
00064     const RTOp_value_type     *v0_val;
00065     ptrdiff_t                 v0_val_s;
00066     /* v1 */
00067     const RTOp_value_type     *v1_val;
00068     ptrdiff_t                 v1_val_s;
00069 
00070     register RTOp_index_type  k;
00071 
00072   /* */
00073   /* Validate the input */
00074   /* */
00075     if( num_vecs != 2 || ( num_vecs && vecs == NULL ) )
00076         return RTOp_ERR_INVALID_NUM_VECS;
00077     if( num_targ_vecs != 1 || ( num_targ_vecs && targ_vecs == NULL ) )
00078         return RTOp_ERR_INVALID_NUM_TARG_VECS;
00079     if( /* Validate sub_dim */
00080         vecs[1].sub_dim != vecs[0].sub_dim
00081         || targ_vecs[0].sub_dim != vecs[0].sub_dim
00082         )
00083         return RTOp_ERR_INCOMPATIBLE_VECS;
00084     assert(obj_data);
00085 
00086 
00087   /* */
00088   /* Get pointers to data */
00089   /* */
00090     sub_dim       = vecs[0].sub_dim;
00091     /* z0 */
00092     z0_val        = targ_vecs[0].values;
00093     z0_val_s      = targ_vecs[0].values_stride;
00094     /* v0 */
00095     v0_val        = vecs[0].values;
00096     v0_val_s      = vecs[0].values_stride;
00097     /* v1 */
00098     v1_val        = vecs[1].values;
00099     v1_val_s      = vecs[1].values_stride;
00100 
00101 
00102   /* */
00103   /* Apply the operator: */
00104   /* */
00105     /*    element-wise transformation : z0 = alpha/(v0-v1); */
00106     /* */
00107     for( k = 0; k < sub_dim; ++k, v0_val += v0_val_s, v1_val += v1_val_s, z0_val += z0_val_s )
00108     {
00109         /* Element-wise transformation */
00110 /*        if (fabs((*v0_val)-(*v1_val)) > 5.562685e-309) */
00111     { (*z0_val) = (*alpha)/((*v0_val)-(*v1_val)); }
00112 /*  else */
00113 /*    { (*z0_val) = 1.797693e+308; } */
00114     }
00115 
00116   return 0; /* success? */
00117 }
00118 
00119 /* Virtual function table */
00120 const struct RTOp_RTOp_vtbl_t RTOp_TOp_inv_of_difference_vtbl =
00121 {
00122   &RTOp_obj_value_vtbl
00123   ,&RTOp_obj_null_vtbl
00124   ,"TOp_inv_of_difference"
00125   ,NULL
00126   ,RTOp_TOp_inv_of_difference_apply_op
00127   ,NULL
00128   ,NULL
00129 };
00130 
00131 /* Class specific functions */
00132 
00133 int RTOp_TOp_inv_of_difference_construct( RTOp_value_type alpha,  struct RTOp_RTOp* op )
00134 {
00135 #ifdef RTOp_DEBUG
00136   assert(op);
00137 #endif
00138   op->obj_data  = NULL;
00139   op->vtbl      = &RTOp_TOp_inv_of_difference_vtbl;
00140   op->vtbl->obj_data_vtbl->obj_create(NULL,NULL,&op->obj_data);
00141   return RTOp_TOp_inv_of_difference_init(alpha,op);
00142 }
00143 
00144 int RTOp_TOp_inv_of_difference_destroy( struct RTOp_RTOp* op )
00145 {
00146   op->vtbl->obj_data_vtbl->obj_free(NULL,NULL,&op->obj_data);
00147   op->obj_data  = NULL;
00148   op->vtbl      = NULL;
00149   return 0;
00150 }
00151 
00152 int RTOp_TOp_inv_of_difference_init( RTOp_value_type alpha, struct RTOp_RTOp* op )
00153 {
00154     RTOp_value_type *ptr_alpha = (RTOp_value_type*)op->obj_data;
00155     *ptr_alpha = alpha;
00156     return 0;
00157 }
00158 

Generated on Tue Jul 13 09:28:39 2010 for RTOpPack: Extra C/C++ Code for Vector Reduction/Transformation Operators by  doxygen 1.4.7