ref: 349fb0a3a44d80d9655037eb660af844bc5a3244
dir: /lib/std/test/rand.myr/
use std
const main = {
var v32, t32 : int32
var vu64, tu64 : uint64
var allsame
/* basic int32 */
allsame = true
v32 = std.rand(0, 666)
for var i = 0; i < 128; i++
t32 = std.rand(0, 666)
std.assert(t32 >= 0 && t32 < 666, "value {} is out of range [0, 666)\n", t32)
if t32 != v32
allsame = false
;;
;;
std.assert(!allsame, "all values generated were identical.\n")
/* negative range */
allsame = true
v32 = std.rand(-888, -111)
for var i = 0; i < 128; i++
t32 = std.rand(-888, -111)
std.assert(t32 >= -888 && t32 < -111, "value {} is out of range [-888, -111)\n", t32)
if t32 != v32
allsame = false
;;
;;
std.assert(!allsame, "all values generated were identical.\n")
/* basic uint64 */
allsame = true
vu64 = std.rand(0, 88)
for var i = 0; i < 128; i++
tu64 = std.rand(0, 88)
std.assert(tu64 >= 0 && tu64 < 666, "value {} is out of range [0, 88)\n", tu64)
if tu64 != vu64
allsame = false
;;
;;
std.assert(!allsame, "all values generated were identical.\n")
}