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| author | MadCamel <madcamel@gmail.com> | 2009-08-30 19:26:28 -0400 |
|---|---|---|
| committer | MadCamel <madcamel@gmail.com> | 2009-08-30 19:26:28 -0400 |
| commit | dbd9d0321c66deeecf01445f8298aa5076391fbd (patch) | |
| tree | 6b680d039840b478bb6febd656e128969ae4624c /src/common | |
| parent | 8acdd39d413cd5a29ab70ca2b8cf22b43ca216b0 (diff) | |
| download | tmwa-dbd9d0321c66deeecf01445f8298aa5076391fbd.tar.gz tmwa-dbd9d0321c66deeecf01445f8298aa5076391fbd.tar.bz2 tmwa-dbd9d0321c66deeecf01445f8298aa5076391fbd.tar.xz tmwa-dbd9d0321c66deeecf01445f8298aa5076391fbd.zip | |
MRAND() no longer uses high-order bits
Diffstat (limited to 'src/common')
| -rw-r--r-- | src/common/utils.h | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/src/common/utils.h b/src/common/utils.h index ba96da1..0b006c3 100644 --- a/src/common/utils.h +++ b/src/common/utils.h @@ -34,10 +34,9 @@ /* * ModuloRand and ModuloPlusRand. These macros are used to replace the - * vast number of calls to rand()%mod which is low-order bits. These - * instead use the high-order bits as suggested in the man page of rand(). + * vast number of calls to rand()%mod .. * MRAND(10), returns 0-9. * MPRAND(5,10) returns 5-14. */ -#define MRAND(mod) (int) ((float)mod * (mt_random() / (RAND_MAX + 1.0))) +#define MRAND(mod) (int) (mt_random() % mod) #define MPRAND(add, mod) add + MRAND(mod) |