1#[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)]
2pub fn frexpf(x: f32) -> (f32, i32) {
3 let mut y: u32 = x.to_bits();
4 let ee: i32 = ((y >> 23) & 0xff) as i32;
5
6 if ee == 0 {
7 if x != 0.0 {
8 let x1p64: f32 = f32::from_bits(0x5f800000);
9 let (x: f32, e: i32) = frexpf(x * x1p64);
10 return (x, e - 64);
11 } else {
12 return (x, 0);
13 }
14 } else if ee == 0xff {
15 return (x, 0);
16 }
17
18 let e: i32 = ee - 0x7e;
19 y &= 0x807fffff;
20 y |= 0x3f000000;
21 (f32::from_bits(y), e)
22}
23