diff options
Diffstat (limited to 'xf86drmRandom.c')
-rw-r--r-- | xf86drmRandom.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/xf86drmRandom.c b/xf86drmRandom.c index ecab9e2d..94922ad7 100644 --- a/xf86drmRandom.c +++ b/xf86drmRandom.c @@ -98,7 +98,7 @@ typedef struct RandomState { unsigned long q; /* m div a */ unsigned long r; /* m mod a */ unsigned long check; - long seed; + unsigned long seed; } RandomState; #if RANDOM_MAIN @@ -147,13 +147,13 @@ int drmRandomDestroy(void *state) unsigned long drmRandom(void *state) { RandomState *s = (RandomState *)state; - long hi; - long lo; + unsigned long hi; + unsigned long lo; hi = s->seed / s->q; lo = s->seed % s->q; s->seed = s->a * lo - s->r * hi; - if (s->seed <= 0) s->seed += s->m; + if ((s->a * lo) <= (s->r * hi)) s->seed += s->m; return s->seed; } @@ -166,7 +166,7 @@ double drmRandomDouble(void *state) } #if RANDOM_MAIN -static void check_period(long seed) +static void check_period(unsigned long seed) { unsigned long count = 0; unsigned long initial; @@ -178,7 +178,7 @@ static void check_period(long seed) while (initial != drmRandom(state)) { if (!++count) break; } - printf("With seed of %10ld, period = %10lu (0x%08lx)\n", + printf("With seed of %10lu, period = %10lu (0x%08lx)\n", seed, count, count); drmRandomDestroy(state); } |