diff options
Diffstat (limited to 'src/backend/optimizer/geqo/geqo_copy.c')
-rw-r--r-- | src/backend/optimizer/geqo/geqo_copy.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/src/backend/optimizer/geqo/geqo_copy.c b/src/backend/optimizer/geqo/geqo_copy.c new file mode 100644 index 0000000..62302f4 --- /dev/null +++ b/src/backend/optimizer/geqo/geqo_copy.c @@ -0,0 +1,54 @@ +/*------------------------------------------------------------------------ + * + * geqo_copy.c + * + * Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group + * Portions Copyright (c) 1994, Regents of the University of California + * + * src/backend/optimizer/geqo/geqo_copy.c + * + *------------------------------------------------------------------------- + */ + +/* contributed by: + =*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*= + * Martin Utesch * Institute of Automatic Control * + = = University of Mining and Technology = + * utesch@aut.tu-freiberg.de * Freiberg, Germany * + =*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*= + */ + +/* this is adopted from D. Whitley's Genitor algorithm */ + +/*************************************************************/ +/* */ +/* Copyright (c) 1990 */ +/* Darrell L. Whitley */ +/* Computer Science Department */ +/* Colorado State University */ +/* */ +/* Permission is hereby granted to copy all or any part of */ +/* this program for free distribution. The author's name */ +/* and this copyright notice must be included in any copy. */ +/* */ +/*************************************************************/ + +#include "postgres.h" +#include "optimizer/geqo_copy.h" + +/* geqo_copy + * + * copies one gene to another + * + */ +void +geqo_copy(PlannerInfo *root, Chromosome *chromo1, Chromosome *chromo2, + int string_length) +{ + int i; + + for (i = 0; i < string_length; i++) + chromo1->string[i] = chromo2->string[i]; + + chromo1->worth = chromo2->worth; +} |