source: libcfa/src/vec/vec2.hfa

//
// Cforall Version 1.0.0 Copyright (C) 2021 University of Waterloo
//
// The contents of this file are covered under the licence agreement in the
// file "LICENCE" distributed with Cforall.
//
// io/types.hfa --
//
// Author           : Dimitry Kobets
// Created On       :
// Last Modified By :
// Last Modified On :
// Update Count     :
//

#pragma once

#include <iostream.hfa>
#include "vec.hfa"

forall (T) {
    struct vec2 {
        T x, y;
    };
}

forall (T) {
    static inline {

    void ?{}(vec2(T)& v, T x, T y) {
        v.[x, y] = [x, y];
    }

    forall(| zero_assign(T))
    void ?{}(vec2(T)& vec, zero_t) with (vec) {
        x = y = 0;
    }

    void ?{}(vec2(T)& vec, T val) with (vec) {
        x = y = val;
    }

    void ?{}(vec2(T)& vec, vec2(T) other) with (vec) {
        [x,y] = other.[x,y];
    }

    void ?=?(vec2(T)& vec, vec2(T) other) with (vec) {
        [x,y] = other.[x,y];
    }
    forall(| zero_assign(T))
    void ?=?(vec2(T)& vec, zero_t) with (vec) {
        x = y = 0;
    }

    // Primitive mathematical operations

    // -
    forall(| subtract(T)) {
    vec2(T) ?-?(vec2(T) u, vec2(T) v) {
        return [u.x - v.x, u.y - v.y];
    }
    vec2(T)& ?-=?(vec2(T)& u, vec2(T) v) {
        u = u - v;
        return u;
    }
    }
    forall(| negate(T))
    vec2(T) -?(vec2(T) v) with (v) {
        return [-x, -y];
    }

    forall(| { T --?(T&); }) {
    vec2(T)& --?(vec2(T)& v) {
        --v.x;
        --v.y;
        return v;
    }
    vec2(T) ?--(vec2(T)& v) {
        vec2(T) copy = v;
        --v;
        return copy;
    }
    }

    // +
    forall(| add(T)) {
    vec2(T) ?+?(vec2(T) u, vec2(T) v) {
        return [u.x + v.x, u.y + v.y];
    }
    vec2(T)& ?+=?(vec2(T)& u, vec2(T) v) {
        u = u + v;
        return u;
    }
    }

    forall(| { T ++?(T&); }) {
    vec2(T)& ++?(vec2(T)& v) {
        ++v.x;
        ++v.y;
        return v;
    }
    vec2(T) ?++(vec2(T)& v) {
        vec2(T) copy = v;
        ++v;
        return copy;
    }
    }

    // *
    forall(| multiply(T)) {
    vec2(T) ?*?(vec2(T) v, T scalar) with (v) {
        return [x * scalar, y * scalar];
    }
    vec2(T) ?*?(T scalar, vec2(T) v) {
        return v * scalar;
    }
    vec2(T) ?*?(vec2(T) u, vec2(T) v) {
        return [u.x * v.x, u.y * v.y];
    }
    vec2(T)& ?*=?(vec2(T)& v, T scalar) {
        v = v * scalar;
        return v;
    }
    vec2(T) ?*=?(vec2(T)& u, vec2(T) v) {
        u = u * v;
        return u;
    }
    }

    // /
    forall(| divide(T)) {
    vec2(T) ?/?(vec2(T) v, T scalar) with (v) {
        return [x / scalar, y / scalar];
    }
    vec2(T) ?/?(vec2(T) u, vec2(T) v) {
        return [u.x / v.x, u.y / v.y];
    }
    vec2(T)& ?/=?(vec2(T)& v, T scalar) {
        v = v / scalar;
        return v;
    }
    vec2(T) ?/=?(vec2(T)& u, vec2(T) v) {
        u = u / v;
        return u;
    }
    }

    // %
    forall(| { T ?%?(T,T); }) {
    vec2(T) ?%?(vec2(T) v, T scalar) with (v) {
        return [x % scalar, y % scalar];
    }
    vec2(T)& ?%=?(vec2(T)& u, T scalar) {
        u = u % scalar;
        return u;
    }
    vec2(T) ?%?(vec2(T) u, vec2(T) v) {
        return [u.x % v.x, u.y % v.y];
    }
    vec2(T)& ?%=?(vec2(T)& u, vec2(T) v) {
        u = u % v;
        return u;
    }
    }

    // &
    forall(| { T ?&?(T,T); }) {
    vec2(T) ?&?(vec2(T) v, T scalar) with (v) {
        return [x & scalar, y & scalar];
    }
    vec2(T)& ?&=?(vec2(T)& u, T scalar) {
        u = u & scalar;
        return u;
    }
    vec2(T) ?&?(vec2(T) u, vec2(T) v) {
        return [u.x & v.x, u.y & v.y];
    }
    vec2(T)& ?&=?(vec2(T)& u, vec2(T) v) {
        u = u & v;
        return u;
    }
    }

    // |
    forall(| { T ?|?(T,T); }) {
    vec2(T) ?|?(vec2(T) v, T scalar) with (v) {
        return [x | scalar, y | scalar];
    }
    vec2(T)& ?|=?(vec2(T)& u, T scalar) {
        u = u | scalar;
        return u;
    }
    vec2(T) ?|?(vec2(T) u, vec2(T) v) {
        return [u.x | v.x, u.y | v.y];
    }
    vec2(T)& ?|=?(vec2(T)& u, vec2(T) v) {
        u = u | v;
        return u;
    }
    }

    // ^
    forall(| { T ?^?(T,T); }) {
    vec2(T) ?^?(vec2(T) v, T scalar) with (v) {
        return [x ^ scalar, y ^ scalar];
    }
    vec2(T)& ?^=?(vec2(T)& u, T scalar) {
        u = u ^ scalar;
        return u;
    }
    vec2(T) ?^?(vec2(T) u, vec2(T) v) {
        return [u.x ^ v.x, u.y ^ v.y];
    }
    vec2(T)& ?^=?(vec2(T)& u, vec2(T) v) {
        u = u ^ v;
        return u;
    }
    }

    // <<
    forall(| { T ?<<?(T,T); }) {
    vec2(T) ?<<?(vec2(T) v, T scalar) with (v) {
        return [x << scalar, y << scalar];
    }
    vec2(T)& ?<<=?(vec2(T)& u, T scalar) {
        u = u << scalar;
        return u;
    }
    vec2(T) ?<<?(vec2(T) u, vec2(T) v) {
        return [u.x << v.x, u.y << v.y];
    }
    vec2(T)& ?<<=?(vec2(T)& u, vec2(T) v) {
        u = u << v;
        return u;
    }
    }

    // >>
    forall(| { T ?>>?(T,T); }) {
    vec2(T) ?>>?(vec2(T) v, T scalar) with (v) {
        return [x >> scalar, y >> scalar];
    }
    vec2(T)& ?>>=?(vec2(T)& u, T scalar) {
        u = u >> scalar;
        return u;
    }
    vec2(T) ?>>?(vec2(T) u, vec2(T) v) {
        return [u.x >> v.x, u.y >> v.y];
    }
    vec2(T)& ?>>=?(vec2(T)& u, vec2(T) v) {
        u = u >> v;
        return u;
    }
    }

    // ~
    forall(| { T ~?(T); })
    vec2(T) ~?(vec2(T) v) with (v) {
        return [~v.x, ~v.y];
    }

    // relational
    forall(| equality(T)) {
    bool ?==?(vec2(T) u, vec2(T) v) with (u) {
        return x == v.x && y == v.y;
    }
    bool ?!=?(vec2(T) u, vec2(T) v) {
        return !(u == v);
    }
    }

    // Geometric functions
    forall(| add(T) | multiply(T))
    T dot(vec2(T) u, vec2(T) v) {
        return u.x * v.x + u.y * v.y;
    }

    } // static inline
}

forall(ostype &, T | writeable(T, ostype)) {
    ostype & ?|?(ostype & os, vec2(T) v) with (v) {
        return os | '<' | x | ',' | y | '>';
    }
        OSTYPE_VOID_IMPL( vec2(T) )
}