1
0
mirror of https://github.com/vlang/v.git synced 2023-08-10 21:13:21 +03:00
v/vlib/rand/rand.v
2020-05-11 16:05:59 +02:00

26 lines
498 B
V

// Copyright (c) 2019-2020 Alexander Medvednikov. All rights reserved.
// Use of this source code is governed by an MIT license
// that can be found in the LICENSE file.
module rand
fn C.rand() int
pub fn seed(s int) {
C.srand(s)
}
pub fn next(max int) int {
return C.rand() % max
}
// rand_r returns a pseudo-random number;
// writes a result value to the seed argument.
pub fn rand_r(seed &int) int {
ns := *seed * 1103515245 + 12345
unsafe {
(*seed) = ns
}
return ns & 0x7fffffff
}