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use super::copysignf;
use super::truncf;
use core::f32;
#[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)]
pub fn roundf(x: f32) -> f32 {
truncf(x + copysignf(0.5 - 0.25 * f32::EPSILON, x))
}
#[cfg(not(target_arch = "powerpc64"))]
#[cfg(test)]
mod tests {
use super::roundf;
#[test]
fn negative_zero() {
assert_eq!(roundf(-0.0_f32).to_bits(), (-0.0_f32).to_bits());
}
#[test]
fn sanity_check() {
assert_eq!(roundf(-1.0), -1.0);
assert_eq!(roundf(2.8), 3.0);
assert_eq!(roundf(-0.5), -1.0);
assert_eq!(roundf(0.5), 1.0);
assert_eq!(roundf(-1.5), -2.0);
assert_eq!(roundf(1.5), 2.0);
}
}