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geqo_copy.c
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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 geqo_copy(PlannerInfo *root, Chromosome *chromo1, Chromosome *chromo2,
46  int string_length)
47 {
48  int i;
49 
50  for (i = 0; i < string_length; i++)
51  chromo1->string[i] = chromo2->string[i];
52 
53  chromo1->worth = chromo2->worth;
54 }
Cost worth
Definition: geqo_gene.h:35
void geqo_copy(PlannerInfo *root, Chromosome *chromo1, Chromosome *chromo2, int string_length)
Definition: geqo_copy.c:45
int i
Gene * string
Definition: geqo_gene.h:34