latn_add_4.cc

来自「这是处理语音信号的程序」· CC 代码 · 共 55 行

// file: latn_add_4.cc
//

// isip include files
//
#include "lattice_node.h"
#include "lattice_node_constants.h"

// method: add_ac_score_cc
//
// arguments:
//  float_4 ac_score: (input) ac score to be added
//
// return: logical_1 indicating status
//
// this method adds the ac score for the node just created
//
logical_1 Lattice_node::add_ac_score_cc(float_4 ac_score_a) {

  // define a temporary array
  //
  float_4* new_list = new float_4[num_arcs_out_d];

  // check if the ac_scores array exists
  //
  if ((num_arcs_out_d > 1) && (ac_scores_d != (float_4*)NULL)) {
    
    // copy old data to new array
    //
    memcpy(new_list, ac_scores_d, (num_arcs_out_d - 1) * sizeof(float_4));
  }
  
  // add the new value to the end of the array
  //
  new_list[(num_arcs_out_d - 1)] = ac_score_a;
  
  // free old memory and reset pointers
  //
  if (ac_scores_d != (float_4*)NULL) {
    delete [] ac_scores_d;
    ac_scores_d = (float_4*)NULL;
  }
  ac_scores_d = new_list;    
  
  // exit gracefully
  //
  return ISIP_TRUE;
}