RTOp_SparseSubVector.c

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// Moocho: Multi-functional Object-Oriented arCHitecture for Optimization
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#include "RTOp_SparseSubVector.h"

void RTOp_sparse_sub_vector(
  RTOp_index_type global_offset, RTOp_index_type sub_dim
  ,RTOp_index_type sub_nz, const RTOp_value_type values[], ptrdiff_t values_stride
  ,const RTOp_index_type indices[], ptrdiff_t indices_stride
  ,ptrdiff_t local_offset, int is_sorted
  ,struct RTOp_SparseSubVector *sub_vec
  )
{
  /* Validate input */
#ifdef RTOp_DEBUG
  assert( sub_vec );
  assert(
    ( sub_nz && ( values != NULL && indices != NULL && indices_stride != 0 && sub_nz <= sub_dim ) )
    || !sub_nz || ( sub_nz == sub_dim && indices == NULL )
    );
#endif
  /* Set members */
  sub_vec->global_offset  = global_offset;
  sub_vec->sub_dim        = sub_dim;
  sub_vec->sub_nz         = sub_nz;
  sub_vec->values         = values;
  sub_vec->values_stride  = values_stride;
  sub_vec->indices        = indices;
  sub_vec->indices_stride = indices_stride;
  sub_vec->local_offset   = local_offset;
  sub_vec->is_sorted      = is_sorted;
}

void RTOp_sparse_sub_vector_null( struct RTOp_SparseSubVector *sub_vec )
{
  sub_vec->global_offset  = 0;
  sub_vec->sub_dim        = 0;
  sub_vec->sub_nz         = 0;
  sub_vec->values         = NULL;
  sub_vec->values_stride  = 0;
  sub_vec->indices        = NULL;
  sub_vec->indices_stride = 0;
  sub_vec->local_offset   = 0;
  sub_vec->is_sorted      = 0;
}

void RTOp_sparse_sub_vector_from_dense(
  const struct RTOp_SubVector     *sub_vec
  ,struct RTOp_SparseSubVector    *spc_sub_vec
  )
{
  spc_sub_vec->global_offset  = sub_vec->global_offset;
  spc_sub_vec->sub_dim        = sub_vec->sub_dim;
  spc_sub_vec->sub_nz         = sub_vec->sub_dim;
  spc_sub_vec->values         = sub_vec->values;
  spc_sub_vec->values_stride  = sub_vec->values_stride;
  spc_sub_vec->indices        = NULL;
  spc_sub_vec->indices_stride = 0;
  spc_sub_vec->local_offset   = 0;
  spc_sub_vec->is_sorted      = 0;
}