Commit ff5673ae1b
Changed files (1)
std
std/rand.zig
@@ -53,6 +53,11 @@ pub struct Rand {
}
}
+ pub fn float32(r: &Rand) -> f32 {
+ const precision = 16777216;
+ return f32(r.range_u64(0, precision)) / precision;
+ }
+
fn generate_numbers(r: &Rand) {
for (item, r.array, i) {
const y : u32 = (item & 0x80000000) + (r.array[(i + 1) % ARRAY_SIZE] & 0x7fffffff);
@@ -91,3 +96,17 @@ pub fn rand_new(seed: u32) -> Rand {
}
return r;
}
+
+#attribute("test")
+fn test_float32() {
+ var r = rand_new(42);
+
+ // TODO for loop with range
+ var i: i32 = 0;
+ while (i < 1000) {
+ const val = r.float32();
+ if (!(val >= 0.0)) unreachable{};
+ if (!(val < 1.0)) unreachable{};
+ i += 1;
+ }
+}