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Document crypto_fast_rng_one_in_n.

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This commit is contained in:
Nick Mathewson 2019-03-01 08:20:54 -05:00
parent b3416476b4
commit 64f594499a
1 changed files with 6 additions and 0 deletions
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6
src/lib/crypt_ops/crypto_rand.h
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@ -68,6 +68,12 @@ unsigned crypto_fast_rng_get_uint(crypto_fast_rng_t *rng, unsigned limit);
uint64_t crypto_fast_rng_get_uint64(crypto_fast_rng_t *rng, uint64_t limit);
double crypto_fast_rng_get_double(crypto_fast_rng_t *rng);
/**
* Using the fast_rng <b>rng</b>, yield true with probability
* 1/<b>n</b>. Otherwise yield false.
*
* <b>n</b> must not be zero.
**/
#define crypto_fast_rng_one_in_n(rng, n) \
(0 == (crypto_fast_rng_get_uint((rng), (n))))