48 lines
808 B
Rust
48 lines
808 B
Rust
use std::cmp::PartialEq;
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use std::ops::{Add, Div, Rem};
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//-----------------------------------------
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pub trait Integer:
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Sized + Copy + Add<Output = Self> + Div<Output = Self> + Rem<Output = Self> + PartialEq
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{
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fn zero() -> Self;
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fn one() -> Self;
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}
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pub fn div_up<T: Integer>(v: T, divisor: T) -> T {
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if v % divisor != Integer::zero() {
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v / divisor + Integer::one()
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} else {
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v / divisor
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}
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}
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pub fn div_down<T: Integer>(v: T, divisor: T) -> T {
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v / divisor
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}
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//-----------------------------------------
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impl Integer for usize {
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fn zero() -> Self {
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0
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}
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fn one() -> Self {
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1
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}
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}
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impl Integer for u64 {
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fn zero() -> Self {
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0
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}
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fn one() -> Self {
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1
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}
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}
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//-----------------------------------------
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