| 1 | // Copyright 2015-2022 Brian Smith. |
| 2 | // |
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| 3 | // Permission to use, copy, modify, and/or distribute this software for any |
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| 4 | // purpose with or without fee is hereby granted, provided that the above |
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| 5 | // copyright notice and this permission notice appear in all copies. |
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| 6 | // |
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| 7 | // THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES |
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| 8 | // WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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| 9 | // MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY |
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| 10 | // SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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| 11 | // WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
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| 12 | // OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
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| 13 | // CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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| 14 | |
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| 15 | use crate::limb::Limb; |
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| 16 | |
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| 17 | #[derive (Clone, Copy)] |
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| 18 | #[repr (transparent)] |
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| 19 | pub struct N0([Limb; 2]); |
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| 20 | |
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| 21 | impl N0 { |
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| 22 | #[cfg (feature = "alloc" )] |
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| 23 | pub(super) const LIMBS_USED: usize = 64 / crate::limb::LIMB_BITS; |
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| 24 | |
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| 25 | #[inline ] |
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| 26 | pub const fn precalculated(n0: u64) -> Self { |
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| 27 | #[cfg (target_pointer_width = "64" )] |
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| 28 | { |
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| 29 | Self([n0, 0]) |
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| 30 | } |
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| 31 | |
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| 32 | #[cfg (target_pointer_width = "32" )] |
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| 33 | { |
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| 34 | Self([n0 as Limb, (n0 >> crate::limb::LIMB_BITS) as Limb]) |
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| 35 | } |
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| 36 | } |
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| 37 | } |
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| 38 | |
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