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Fix UB in test (really this time)

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This commit is contained in:
Caleb Zulawski 2020-10-11 21:28:50 -04:00
parent 6e07982c4c
commit c27c76182b
1 changed files with 11 additions and 6 deletions
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17
crates/core_simd/tests/ops_impl/float_macros.rs
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@ -383,21 +383,26 @@ macro_rules! float_tests {
#[test]
#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)]
fn to_int_unchecked() {
// The maximum integer that can be represented by the equivalently sized float has
// all of the mantissa digits set to 1, pushed up to the MSB.
const ALL_MANTISSA_BITS: $int_scalar = ((1 << <$scalar>::MANTISSA_DIGITS) - 1);
const MAX_REPRESENTABLE_VALUE: $int_scalar =
ALL_MANTISSA_BITS << (core::mem::size_of::<$scalar>() * 8 as usize - <$scalar>::MANTISSA_DIGITS as usize);
const VALUES: [$scalar; 16] = [
-0.0,
0.0,
-1.0,
1.0,
<$int_scalar>::MAX as $scalar,
<$int_scalar>::MIN as $scalar,
ALL_MANTISSA_BITS as $scalar,
-ALL_MANTISSA_BITS as $scalar,
MAX_REPRESENTABLE_VALUE as $scalar,
-MAX_REPRESENTABLE_VALUE as $scalar,
(MAX_REPRESENTABLE_VALUE / 2) as $scalar,
(-MAX_REPRESENTABLE_VALUE / 2) as $scalar,
<$scalar>::MIN_POSITIVE,
-<$scalar>::MIN_POSITIVE,
<$scalar>::EPSILON,
-<$scalar>::EPSILON,
core::$scalar::consts::PI,
-core::$scalar::consts::PI,
core::$scalar::consts::TAU,
-core::$scalar::consts::TAU,
100.0 / 3.0,
-100.0 / 3.0,
];