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January 30, 2022 05:54
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super basic complex number implementation overloaded with rust primitives
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use std::{ops::*,cmp::PartialEq}; | |
#[derive(Debug,Clone,Copy,PartialEq)] pub struct Complex(f64,f64); | |
type C=Complex; | |
impl Add for C{ type Output = C; fn add(self, rhs: Self) -> Self::Output { Complex(self.0+rhs.0,self.1+rhs.1)}} | |
impl Sub for C{ type Output = C; fn sub(self, rhs: Self) -> Self::Output { Complex(self.0-rhs.0,self.1-rhs.1)}} | |
impl Neg for C{ type Output = C; fn neg(self ) -> Self::Output { Complex(-self.0,-self.1)}} | |
impl Mul for C{ type Output = C; fn mul(self, rhs: Self) -> Self::Output { Complex((self.0*rhs.0)-(self.1*rhs.1), (self.0*rhs.1)+(self.1*rhs.0))}} | |
impl Div for C{ type Output = C; fn div(self, rhs: Self) -> Self::Output { | |
let div = rhs.0.powi(2)+rhs.1.powi(2); Complex((self.0*rhs.0 + self.1*rhs.1)/div, (self.1*rhs.0 - self.0*rhs.1)/div)}} | |
impl AddAssign for C{fn add_assign(&mut self, rhs: Self) {*self = self.add(rhs)}} | |
impl SubAssign for C{fn sub_assign(&mut self, rhs: Self) {*self = self.sub(rhs)}} | |
impl MulAssign for C{fn mul_assign(&mut self, rhs: Self) {*self = self.mul(rhs)}} | |
impl DivAssign for C{fn div_assign(&mut self, rhs: Self) {*self = self.div(rhs)}} | |
// Complex Overloads | |
macro_rules! c_ol_partial_eq {( $TYPE:ty ) => { | |
impl PartialEq<$TYPE> for C { | |
fn eq(&self, rhs: &$TYPE ) -> bool {match self {Complex(r,i) if *r == *rhs as f64 && (*i ==0.0) =>true,_=>false}} | |
fn ne(&self, rhs: &$TYPE ) -> bool {!(self==rhs)}} | |
impl PartialEq<C> for $TYPE { | |
fn eq(&self, rhs: &C ) -> bool {match rhs {Complex(r,i) if *r == *self as f64 && (*i ==0.0) =>true,_=>false}} | |
fn ne(&self, rhs: &C ) -> bool {!(self==rhs)}} | |
};} | |
macro_rules! c_ol_trait {( $TRAIT:ident $METHOD:ident => $TYPE:ty ) => { | |
impl $TRAIT<$TYPE> for C {type Output = C; fn $METHOD(self, rhs: $TYPE ) -> Self::Output {Complex(self.0.$METHOD(rhs as f64),self.1)}} | |
impl $TRAIT<C> for $TYPE {type Output = C; fn $METHOD(self, rhs: C ) -> Self::Output {Complex((self as f64).$METHOD(rhs.0),rhs.1)}} | |
};} | |
macro_rules! c_ol_assign {($TRAIT:ident $METHOD:ident => $TYPE:ty) => { | |
impl $TRAIT<$TYPE> for C {fn $METHOD(&mut self, rhs: $TYPE) {self.0.$METHOD(rhs as f64)}} };} | |
macro_rules! c_ol_all_traits {($($TRAIT:ident $METHOD:ident;)* =>$TYPE:ty) => {$( c_ol_trait!{ $TRAIT $METHOD=>$TYPE} )*};} | |
macro_rules! c_ol_all_assigns {($($TRAIT:ident $METHOD:ident;)* =>$TYPE:ty) => {$( c_ol_assign!{$TRAIT $METHOD=>$TYPE} )*};} | |
macro_rules! complex_overload_all {($($TYPE:ty)*) => { $( | |
c_ol_all_traits! {Add add; Sub sub; Mul mul; Div div; => $TYPE} | |
c_ol_all_assigns!{AddAssign add_assign; SubAssign sub_assign; MulAssign mul_assign; DivAssign div_assign; => $TYPE} | |
c_ol_partial_eq! {$TYPE} | |
)* | |
};} | |
complex_overload_all!{isize i8 i16 i32 i64 i128 usize u8 u16 u32 u64 u128 f32 f64} |
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