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Document math behind MIN/MAX consts on integers

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Smitty 2021-07-26 20:22:44 -04:00
parent bddb59cf07
commit 7abbc6e3c5
3 changed files with 15 additions and 12 deletions
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8
library/core/src/num/int_macros.rs
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@ -1,9 +1,10 @@
macro_rules! int_impl {
($SelfT:ty, $ActualT:ident, $UnsignedT:ty, $BITS:expr, $Min:expr, $Max:expr,
($SelfT:ty, $ActualT:ident, $UnsignedT:ty, $BITS:expr, $BITS_MINUS_ONE:expr, $Min:expr, $Max:expr,
$rot:expr, $rot_op:expr, $rot_result:expr, $swap_op:expr, $swapped:expr,
$reversed:expr, $le_bytes:expr, $be_bytes:expr,
$to_xe_bytes_doc:expr, $from_xe_bytes_doc:expr) => {
/// The smallest value that can be represented by this integer type.
/// The smallest value that can be represented by this integer type,
#[doc = concat!("-2<sup>", stringify!($BITS_MINUS_ONE), "</sup>.")]
///
/// # Examples
///
@ -15,7 +16,8 @@ macro_rules! int_impl {
#[stable(feature = "assoc_int_consts", since = "1.43.0")]
pub const MIN: Self = !0 ^ ((!0 as $UnsignedT) >> 1) as Self;
/// The largest value that can be represented by this integer type.
/// The largest value that can be represented by this integer type,
#[doc = concat!("2<sup>", stringify!($BITS_MINUS_ONE), "</sup> - 1.")]
///
/// # Examples
///