aboutsummaryrefslogtreecommitdiff
path: root/src/passwordmaker/base_conversion/remainders.rs
diff options
context:
space:
mode:
Diffstat (limited to 'src/passwordmaker/base_conversion/remainders.rs')
-rw-r--r--src/passwordmaker/base_conversion/remainders.rs74
1 files changed, 0 insertions, 74 deletions
diff --git a/src/passwordmaker/base_conversion/remainders.rs b/src/passwordmaker/base_conversion/remainders.rs
deleted file mode 100644
index 93570a1..0000000
--- a/src/passwordmaker/base_conversion/remainders.rs
+++ /dev/null
@@ -1,74 +0,0 @@
-/// Adds `calc_remainders(divisor)` method to types that have some implementation of the Division trait.
-pub(super) trait CalcRemainders<T, D>{
- fn calc_remainders(self, divisor : D) -> Remainders<T,D>;
-}
-
-/// Implement `Division` to enable the `calc_remainders()` method for your type.
-pub(super) trait Division<D> where Self:Sized {
- /// does in-place arbitrary-length division. Returns remainder.
- fn divide(self, divisor : &D) -> DivisionResult<Self, D>;
- fn is_zero(&self) -> bool;
-}
-
-/// Or mark your type as `UseGenericDivision` to just use `/` and `%` operators for types. Makes only sense for integers.
-pub(super) trait UseGenericDivision : Clone
- + for <'a> std::ops::Div<&'a Self, Output = Self>
- + for <'a> std::ops::Rem<&'a Self, Output = Self>
- + Default
- + Eq {}
-
-impl<T, D> CalcRemainders<T, D> for T
- where T:Division<D>
-{
- fn calc_remainders(self, divisor : D) -> Remainders<T, D> {
- Remainders::new(self,divisor)
- }
-}
-
-pub(super) struct Remainders<T, U>{
- value : Option<T>,
- divisor : U,
-}
-
-impl<U, T:Division<U>> Remainders<T, U> {
- fn new(value : T, divisor : U) -> Self {
- let value = if value.is_zero() { None } else { Some(value) };
- Remainders {
- value,
- divisor,
- }
- }
-}
-
-impl<U, T:Division<U>> Iterator for Remainders<T,U>{
- type Item=U;
-
- fn next(&mut self) -> Option<Self::Item> {
- if let Some(v) = self.value.take() {
- let DivisionResult{result, remainder} = v.divide(&self.divisor);
- self.value = if result.is_zero() { None } else { Some(result) };
- Some(remainder)
- } else {
- None
- }
- }
-}
-
-pub(super) struct DivisionResult<T:Division<U>, U> {
- pub result : T,
- pub remainder : U,
-}
-
-impl<U> Division<U> for U
- where U: UseGenericDivision
-{
- fn divide(self, divisor : &Self) -> DivisionResult<Self, Self> {
- DivisionResult {
- result: self.clone().div(divisor),
- remainder: self.rem(divisor)
- }
- }
- fn is_zero(&self) -> bool {
- *self == Self::default()
- }
-} \ No newline at end of file