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fix(doc): remove incorrect “available on 64-bit only” portability note on [iu]size #151512

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fix(doc): remove incorrect “available on 64-bit only” portability note on [iu]size #151512

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5caadef
feat: conditional `uint_impl!` macro
ShE3py Apr 8, 2026
0436fc3
`uint_impl!`: `#[doc =` -> `#[cfg_attr($Pred, doc =`
ShE3py Apr 8, 2026
cfc44b1
`uint_impl!`: `$ActualT`
ShE3py Apr 8, 2026
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148 changes: 76 additions & 72 deletions library/core/src/num/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1329,95 +1329,99 @@ impl u128 {
carrying_carryless_mul_impl! { u128, u256 }
}

#[cfg(target_pointer_width = "16")]
impl usize {
uint_impl! {
Self = usize,
ActualT = u16,
SignedT = isize,
BITS = 16,
BITS_MINUS_ONE = 15,
MAX = 65535,
rot = 4,
rot_op = "0xa003",
rot_result = "0x3a",
fsh_op = "0x2de",
fshl_result = "0x30",
fshr_result = "0x302d",
clmul_lhs = "0x9012",
clmul_rhs = "0xcd34",
clmul_result = "0x928",
swap_op = "0x1234",
swapped = "0x3412",
reversed = "0x2c48",
le_bytes = "[0x34, 0x12]",
be_bytes = "[0x12, 0x34]",
to_xe_bytes_doc = usize_isize_to_xe_bytes_doc!(),
from_xe_bytes_doc = usize_isize_from_xe_bytes_doc!(),
bound_condition = " on 16-bit targets",

#[cfg(target_pointer_width = "16")] {
ActualT = u16,
BITS = 16,
BITS_MINUS_ONE = 15,
MAX = 65535,
rot = 4,
rot_op = "0xa003",
rot_result = "0x3a",
fsh_op = "0x2de",
fshl_result = "0x30",
fshr_result = "0x302d",
clmul_lhs = "0x9012",
clmul_rhs = "0xcd34",
clmul_result = "0x928",
swap_op = "0x1234",
swapped = "0x3412",
reversed = "0x2c48",
le_bytes = "[0x34, 0x12]",
be_bytes = "[0x12, 0x34]",
to_xe_bytes_doc = usize_isize_to_xe_bytes_doc!(),
from_xe_bytes_doc = usize_isize_from_xe_bytes_doc!(),
bound_condition = " on 16-bit targets",
},

#[cfg(target_pointer_width = "32")] {
ActualT = u32,
BITS = 32,
BITS_MINUS_ONE = 31,
MAX = 4294967295,
rot = 8,
rot_op = "0x10000b3",
rot_result = "0xb301",
fsh_op = "0x2fe78e45",
fshl_result = "0xb32f",
fshr_result = "0xb32fe78e",
clmul_lhs = "0x56789012",
clmul_rhs = "0xf52ecd34",
clmul_result = "0x9b980928",
swap_op = "0x12345678",
swapped = "0x78563412",
reversed = "0x1e6a2c48",
le_bytes = "[0x78, 0x56, 0x34, 0x12]",
be_bytes = "[0x12, 0x34, 0x56, 0x78]",
to_xe_bytes_doc = usize_isize_to_xe_bytes_doc!(),
from_xe_bytes_doc = usize_isize_from_xe_bytes_doc!(),
bound_condition = " on 32-bit targets",
},

#[cfg(target_pointer_width = "64")] {
ActualT = u64,
BITS = 64,
BITS_MINUS_ONE = 63,
MAX = 18446744073709551615,
rot = 12,
rot_op = "0xaa00000000006e1",
rot_result = "0x6e10aa",
fsh_op = "0x2fe78e45983acd98",
fshl_result = "0x6e12fe",
fshr_result = "0x6e12fe78e45983ac",
clmul_lhs = "0x7890123456789012",
clmul_rhs = "0xdd358416f52ecd34",
clmul_result = "0xa6299579b980928",
swap_op = "0x1234567890123456",
swapped = "0x5634129078563412",
reversed = "0x6a2c48091e6a2c48",
le_bytes = "[0x56, 0x34, 0x12, 0x90, 0x78, 0x56, 0x34, 0x12]",
be_bytes = "[0x12, 0x34, 0x56, 0x78, 0x90, 0x12, 0x34, 0x56]",
to_xe_bytes_doc = usize_isize_to_xe_bytes_doc!(),
from_xe_bytes_doc = usize_isize_from_xe_bytes_doc!(),
bound_condition = " on 64-bit targets",
}
}
}

#[cfg(target_pointer_width = "16")]
impl usize {
midpoint_impl! { usize, u32, unsigned }
carrying_carryless_mul_impl! { usize, u32 }
}

#[cfg(target_pointer_width = "32")]
impl usize {
uint_impl! {
Self = usize,
ActualT = u32,
SignedT = isize,
BITS = 32,
BITS_MINUS_ONE = 31,
MAX = 4294967295,
rot = 8,
rot_op = "0x10000b3",
rot_result = "0xb301",
fsh_op = "0x2fe78e45",
fshl_result = "0xb32f",
fshr_result = "0xb32fe78e",
clmul_lhs = "0x56789012",
clmul_rhs = "0xf52ecd34",
clmul_result = "0x9b980928",
swap_op = "0x12345678",
swapped = "0x78563412",
reversed = "0x1e6a2c48",
le_bytes = "[0x78, 0x56, 0x34, 0x12]",
be_bytes = "[0x12, 0x34, 0x56, 0x78]",
to_xe_bytes_doc = usize_isize_to_xe_bytes_doc!(),
from_xe_bytes_doc = usize_isize_from_xe_bytes_doc!(),
bound_condition = " on 32-bit targets",
}
midpoint_impl! { usize, u64, unsigned }
carrying_carryless_mul_impl! { usize, u64 }
}

#[cfg(target_pointer_width = "64")]
impl usize {
uint_impl! {
Self = usize,
ActualT = u64,
SignedT = isize,
BITS = 64,
BITS_MINUS_ONE = 63,
MAX = 18446744073709551615,
rot = 12,
rot_op = "0xaa00000000006e1",
rot_result = "0x6e10aa",
fsh_op = "0x2fe78e45983acd98",
fshl_result = "0x6e12fe",
fshr_result = "0x6e12fe78e45983ac",
clmul_lhs = "0x7890123456789012",
clmul_rhs = "0xdd358416f52ecd34",
clmul_result = "0xa6299579b980928",
swap_op = "0x1234567890123456",
swapped = "0x5634129078563412",
reversed = "0x6a2c48091e6a2c48",
le_bytes = "[0x56, 0x34, 0x12, 0x90, 0x78, 0x56, 0x34, 0x12]",
be_bytes = "[0x12, 0x34, 0x56, 0x78, 0x90, 0x12, 0x34, 0x56]",
to_xe_bytes_doc = usize_isize_to_xe_bytes_doc!(),
from_xe_bytes_doc = usize_isize_from_xe_bytes_doc!(),
bound_condition = " on 64-bit targets",
}
midpoint_impl! { usize, u128, unsigned }
carrying_carryless_mul_impl! { usize, u128 }
}
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