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add debug asserts

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Artyom Pavlov 2022-05-27 00:22:56 +00:00 committed by GitHub
parent 26f859463e
commit 06af3a63a5
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1 changed files with 8 additions and 4 deletions
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12
library/core/src/time.rs
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@ -1290,8 +1290,10 @@ macro_rules! try_from_secs {
// note that neither `f32`, nor `f64` can represent
// 0.999_999_999_5 exactly, so the nanos part
// never will be equal to 10^9.
(0, nanos + add_ns as u32)
// never will be equal to NANOS_PER_SEC
let nanos = nanos + add_ns as u32;
debug_assert!(nanos < NANOS_PER_SEC);
(0, nanos)
} else if exp < $mant_bits {
let secs = u64::from(mant >> ($mant_bits - exp));
let t = <$double_ty>::from((mant << exp) & MANT_MASK);
@ -1308,8 +1310,10 @@ macro_rules! try_from_secs {
let add_ns = !(rem_msb || (is_even && is_tie));
// neither `f32`, nor `f64` can represent x.999_999_999_5 exactly,
// so the nanos part never will be equal to 10^9
(secs, nanos + add_ns as u32)
// so the nanos part never will be equal to NANOS_PER_SEC
let nanos = nanos + add_ns as u32;
debug_assert!(nanos < NANOS_PER_SEC);
(secs, nanos)
} else if exp < 64 {
// the input has no fractional part
let secs = u64::from(mant) << (exp - $mant_bits);