| 139 | } |
| 140 | |
| 141 | uint64_t fast_rand_in_u64(uint64_t min, uint64_t max) { |
| 142 | if (need_init(_tls_seed)) { |
| 143 | init_fast_rand_seed(&_tls_seed); |
| 144 | } |
| 145 | if (min >= max) { |
| 146 | if (min == max) { |
| 147 | return min; |
| 148 | } |
| 149 | const uint64_t tmp = min; |
| 150 | min = max; |
| 151 | max = tmp; |
| 152 | } |
| 153 | uint64_t range = max - min + 1; |
| 154 | if (range == 0) { |
| 155 | // max = UINT64_MAX, min = UINT64_MIN |
| 156 | return xorshift128_next(&_tls_seed); |
| 157 | } |
| 158 | return min + fast_rand_impl(range, &_tls_seed); |
| 159 | } |
| 160 | |
| 161 | inline double fast_rand_double(FastRandSeed* seed) { |
| 162 | // Copied from rand_util.cc |
no test coverage detected