Line data    Source code

       1             : /*------------------------------------------------------------------------
       2             :  *
       3             :  * geqo_copy.c
       4             :  *
       5             :  * Portions Copyright (c) 1996-2017, PostgreSQL Global Development Group
       6             :  * Portions Copyright (c) 1994, Regents of the University of California
       7             :  *
       8             :  * src/backend/optimizer/geqo/geqo_copy.c
       9             :  *
      10             :  *-------------------------------------------------------------------------
      11             :  */
      12             : 
      13             : /* contributed by:
      14             :    =*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=
      15             :    *  Martin Utesch              * Institute of Automatic Control      *
      16             :    =                             = University of Mining and Technology =
      17             :    *  utesch@aut.tu-freiberg.de  * Freiberg, Germany                   *
      18             :    =*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=
      19             :  */
      20             : 
      21             : /* this is adopted from D. Whitley's Genitor algorithm */
      22             : 
      23             : /*************************************************************/
      24             : /*                                                           */
      25             : /*  Copyright (c) 1990                                       */
      26             : /*  Darrell L. Whitley                                       */
      27             : /*  Computer Science Department                              */
      28             : /*  Colorado State University                                */
      29             : /*                                                           */
      30             : /*  Permission is hereby granted to copy all or any part of  */
      31             : /*  this program for free distribution.   The author's name  */
      32             : /*  and this copyright notice must be included in any copy.  */
      33             : /*                                                           */
      34             : /*************************************************************/
      35             : 
      36             : #include "postgres.h"
      37             : #include "optimizer/geqo_copy.h"
      38             : 
      39             : /* geqo_copy
      40             :  *
      41             :  *   copies one gene to another
      42             :  *
      43             :  */
      44             : void
      45         192 : geqo_copy(PlannerInfo *root, Chromosome *chromo1, Chromosome *chromo2,
      46             :           int string_length)
      47             : {
      48             :     int         i;
      49             : 
      50        1152 :     for (i = 0; i < string_length; i++)
      51         960 :         chromo1->string[i] = chromo2->string[i];
      52             : 
      53         192 :     chromo1->worth = chromo2->worth;
      54         192 : }