58 lines
965 B
Rust
58 lines
965 B
Rust
//! Arbitrarily large integers
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use crate::Unsigned;
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#[derive(Debug)]
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enum BigIntSign {
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Positive,
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Negative
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}
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#[derive(Debug)]
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pub struct BigInt {
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inner: Vec<usize>,
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sign: BigIntSign,
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}
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impl Default for BigInt {
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fn default() -> Self {
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Self {
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inner: vec![],
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sign: BigIntSign::Positive,
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}
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}
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}
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impl From<T: Unsigned> for BigInt {
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fn from(n: T) -> Self {
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let mut new = Self::default();
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if n > usize::max_value() {
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new.inner = Self.split(n);
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}
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new
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}
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}
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impl<T: Unsigned> BigInt {
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/// Split an unsigned number into BigInt parts
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fn split(num: T) -> Vec<usize> {
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// Pretty easy if you don't actually need to split the value!
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if num < usize::max_value() {
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return vec![T::into()];
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}
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todo!();
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}
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}
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impl BigInt {
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pub fn new() -> Self {
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Self::default()
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}
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}
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#[cfg(test)]
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mod tests {
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} |