diff options
Diffstat (limited to 'src/random.h')
| -rw-r--r-- | src/random.h | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/src/random.h b/src/random.h index b92c29f0be..5fe20c5f76 100644 --- a/src/random.h +++ b/src/random.h @@ -11,6 +11,7 @@ #include <span.h> #include <uint256.h> +#include <cassert> #include <chrono> #include <cstdint> #include <limits> @@ -236,13 +237,19 @@ public: template <typename Tp> Tp rand_uniform_delay(const Tp& time, typename Tp::duration range) { - using Dur = typename Tp::duration; - Dur dur{range.count() > 0 ? /* interval [0..range) */ Dur{randrange(range.count())} : - range.count() < 0 ? /* interval (range..0] */ -Dur{randrange(-range.count())} : - /* interval [0..0] */ Dur{0}}; - return time + dur; + return time + rand_uniform_duration<Tp>(range); } + /** Generate a uniform random duration in the range from 0 (inclusive) to range (exclusive). */ + template <typename Chrono> + typename Chrono::duration rand_uniform_duration(typename Chrono::duration range) noexcept + { + using Dur = typename Chrono::duration; + return range.count() > 0 ? /* interval [0..range) */ Dur{randrange(range.count())} : + range.count() < 0 ? /* interval (range..0] */ -Dur{randrange(-range.count())} : + /* interval [0..0] */ Dur{0}; + }; + // Compatibility with the C++11 UniformRandomBitGenerator concept typedef uint64_t result_type; static constexpr uint64_t min() { return 0; } |