tfprng: expose range formula in form of macros to build custom range generators.

[tfcrypt.git] / tfprng.c

diff --git a/tfprng.c b/tfprng.c
index d4370f31172d0093f487ca07395a85a7286a317d..4db2418964ab44ad7036221b4105c12c69478fb1 100644 (file)
--- a/tfprng.c
+++ b/tfprng.c
@@ -85,7 +85,7 @@ TF_UNIT_TYPE tf_prng_range_r(void *sdata, TF_UNIT_TYPE s, TF_UNIT_TYPE d)
 {
        TF_UNIT_TYPE c = tf_prng_random_r(sdata);
        if (d <= s) return s;
-       return s + c / ((TF_UNIT_TYPE)~0 / (d - s + 1) + 1);
+       return TF_PRNG_RANGE(c, TF_UNIT_TYPE, s, d);
 }
 
 TF_UNIT_TYPE tf_prng_range(TF_UNIT_TYPE s, TF_UNIT_TYPE d)