| 1 | /*------------------------------------------------------------------------ |
| 2 | * |
| 3 | * geqo_copy.c |
| 4 | * |
| 5 | * Portions Copyright (c) 1996-2019, 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 | } |
| 55 | |