diff options
Diffstat (limited to 'src/include/optimizer/geqo_random.h')
| -rw-r--r-- | src/include/optimizer/geqo_random.h | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/src/include/optimizer/geqo_random.h b/src/include/optimizer/geqo_random.h index 327989b5fb8..cb1f60fa34e 100644 --- a/src/include/optimizer/geqo_random.h +++ b/src/include/optimizer/geqo_random.h @@ -6,7 +6,7 @@ * Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/optimizer/geqo_random.h,v 1.21 2009/01/01 17:24:00 momjian Exp $ + * $PostgreSQL: pgsql/src/include/optimizer/geqo_random.h,v 1.22 2009/07/16 20:55:44 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -26,13 +26,16 @@ #include <math.h> -/* geqo_rand returns a random float value between 0 and 1 inclusive */ +#include "optimizer/geqo.h" -#define geqo_rand() ((double) random() / (double) MAX_RANDOM_VALUE) -/* geqo_randint returns integer value between lower and upper inclusive */ +extern void geqo_set_seed(PlannerInfo *root, double seed); -#define geqo_randint(upper,lower) \ - ( (int) floor( geqo_rand()*(((upper)-(lower))+0.999999) ) + (lower) ) +/* geqo_rand returns a random float value between 0 and 1 inclusive */ +extern double geqo_rand(PlannerInfo *root); + +/* geqo_randint returns integer value between lower and upper inclusive */ +#define geqo_randint(root, upper, lower) \ + ( (int) floor( geqo_rand(root)*(((upper)-(lower))+0.999999) ) + (lower) ) #endif /* GEQO_RANDOM_H */ |