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Line wrap some docstrings in scalar.rs.

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Isis Lovecruft 2018-07-04 21:43:13 +00:00
parent b3da93b069
commit 5b263dabd0
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1 changed files with 7 additions and 3 deletions
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10
src/scalar.rs
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@ -75,14 +75,18 @@ type UnpackedScalar = backend::u32::scalar::Scalar32;
/// represents an element of \\(\mathbb Z / \ell\\).
#[derive(Copy, Clone)]
pub struct Scalar {
/// `bytes` is a little-endian byte encoding of an integer representing a scalar modulo the group order.
/// `bytes` is a little-endian byte encoding of an integer representing a scalar modulo the
/// group order.
///
/// # Invariant
///
/// The integer representing this scalar must be bounded above by \\(2\^{255}\\), or equivalently the high bit of `bytes[31]` must be zero.
/// The integer representing this scalar must be bounded above by \\(2\^{255}\\), or
/// equivalently the high bit of `bytes[31]` must be zero.
///
/// This ensures that there is room for a carry bit when computing a NAF representation.
// XXX This is pub(crate) so we can write literal constants. If const fns were stable, we could make the Scalar constructors const fns and use those instead.
//
// XXX This is pub(crate) so we can write literal constants. If const fns were stable, we could
// make the Scalar constructors const fns and use those instead.
pub(crate) bytes: [u8; 32],
}