/
int_macros.rs
49 lines (40 loc) · 1.13 KB
/
int_macros.rs
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#![doc(hidden)]
macro_rules! doc_comment {
($x:expr, $($tt:tt)*) => {
#[doc = $x]
$($tt)*
};
}
macro_rules! int_module {
($T:ident) => (int_module!($T, #[stable(feature = "rust1", since = "1.0.0")]););
($T:ident, #[$attr:meta]) => (
doc_comment! {
concat!("The smallest value that can be represented by this integer type.
Use [`", stringify!($T), "::MIN", "`](../../std/primitive.", stringify!($T), ".html#associatedconstant.MIN) instead.
# Examples
```rust
// deprecated way
let min = std::", stringify!($T), "::MIN;
// intended way
let min = ", stringify!($T), "::MIN;
```
"),
#[$attr]
pub const MIN: $T = $T::MIN;
}
doc_comment! {
concat!("The largest value that can be represented by this integer type.
Use [`", stringify!($T), "::MAX", "`](../../std/primitive.", stringify!($T), ".html#associatedconstant.MAX) instead.
# Examples
```rust
// deprecated way
let max = std::", stringify!($T), "::MAX;
// intended way
let max = ", stringify!($T), "::MAX;
```
"),
#[$attr]
pub const MAX: $T = $T::MAX;
}
)
}