Lightnews — Scholar-powered news

@art.imitates.life

A recent C++(17) experiment: Property accessors, like in C#.
That is, get/set methods disguised as member variables, with full support for sub-members, casts, operator overloads, compound assignments, etc. They optimize down to zero time/memory overhead.
github.com/EvanBalster/...

$#include <property_accessor.h> struct Virtual_Rect { struct RectPtr {Rect *rect;}; // PropertyAccessors(RectPtr, // Give the real RectPtr structure a name so we can assign to it. UnionMember(RectPtr rect_ptr;), // Proxy (reference) property accessors Proxy (int, x1, rect->x1), Proxy (int, x2, rect->x2), Proxy (int, y1, rect->y1), Proxy (int, y2, rect->y2), // Value (get/set by copy) property accessors GetSet (int, width, rect->x2 - rect->x1, int new_width, rect->x2 = rect->x1 + new_width), GetSet (int, height, rect->y2 - rect->y1, int new_height, rect->y2 = rect->y1 + new_height), GetOnly(int, area, rect->area()) ); };$ $#define PROPERTY_ACCESS_NO_MACROS #include <property_accessor.h> struct Virtual_Rect { // The real data underlying the property accessor group. struct RectPtr {Rect *rect;}; // Define reference-getters for proxy property accessors. struct acc_x1 : RectPtr {int& get() const {return rect->x1;}}; struct acc_x2 : RectPtr {int& get() const {return rect->x2;}}; struct acc_y1 : RectPtr {int& get() const {return rect->y1;}}; struct acc_y2 : RectPtr {int& get() const {return rect->y2;}}; // Define getter/setters for value property accessors. struct acc_width : RectPtr { int get() const {return rect->x2 - rect->x1;} void set(int new_width) {rect->x2 = rect->x1 + new_width;} }; struct acc_height : RectPtr { int get() const {return (rect->y2 - rect->y1);} void set(int new_height) {rect->y2 = rect->y1 + new_height;} }; struct acc_area : RectPtr {int get() const {return rect->area();}}; // Property accessors union { // Give the real RectPtr structure a name so we can assign to it. RectPtr rect_ptr; // Proxy (reference) property accessors property_accessor<acc_x1> x1; property_accessor<acc_x2> x2; property_accessor<acc_y1> y1; property_accessor<acc_y2> y2; // Value (get/set by copy) property accessors property_accessor<acc_width> width; property_accessor<acc_height> height; property_accessor<acc_area> area; }; };$ $void PrintVRect(const Virtual_Rect &vrect) { // Properties support iostreams and acting as right-hand operands in general. std::cout << "VRect: {" << vrect.x1 << "," << vrect.y1 << ", " << vrect.x2 << "," << vrect.y2 << "} " << vrect.width << "x" << vrect.height << " = " << vrect.area << " ... width+height = " << (vrect.width+vrect.height) << std::endl; } int main(int argc, char **argv) { Rect rect = {0,2, 1,4}; Virtual_Rect vrect = {&rect}; PrintVRect(vrect); // We can manipulate width and height vrect.width += 2; vrect.height += 3; // We can't manipulate area because it's a get-only property. //vrect.area = 7; <-- this line won't compile! PrintVRect(vrect); }$ $#include <property_accessor.h> struct Rect { int x1, x2, y1, y2; int area() const {return (x2-x1) * (y2-y1);} }; // Expose members of the Rect type as members of their property accessors. PropertyAccess_Members(Rect, Variables(x1, y1, x2, y2), Methods(area));$

February 7, 2025 at 11:57 PM Everybody can reply

6 reposts 8 likes

1 6 8

Ken Pisani

@kpsmartypants.bsky.social

Business leaders and lawmakers = the Reese's Peanut Butter Cup of oppressors. #unionmember

November 19, 2024 at 4:47 AM Everybody can reply

Ken Pisani

@kpsmartypants.bsky.social

Right, THAT'S why Europe borrowed too much money and is in crisis. And #NBC let's her say it unchallenged. Happy Labor Day! #unionmember

November 19, 2024 at 4:47 AM Everybody can reply

Department of Labor Memes

@deptoflabormemes.bsky.social

in the clerb, we all union fam

#labormemes #unionmemes #workermemes #unionpride #antiwork #antiworkmemes #unionstrong #unionsforall #meme #faircontractnow #labormovement #union #economicjustice #leftist #strike #unionpower #anticapitalism #unionize #unionmember #toxicworkplace

Meme text reads “me right after the NLRB counts ballots and announces that we won our union election” followed by an image of a white man saying “There is much pain in the world but not in this room.”

November 27, 2024 at 5:58 PM Everybody can reply

1 reposts 6 likes

1 6

David Schantz

@unionmember.bsky.social

Unions step up to Amazon.

#Unionmember

December 20, 2024 at 1:41 PM Everybody can reply

Kevin Daniels

@kevindaniels.bsky.social

“@nachosarah: when I see a girl crying I throw a dollar at her and try to create a stripper” #unionmember

November 27, 2024 at 6:43 AM Everybody can reply

4 likes

4

David Schantz

@unionmember.bsky.social

#Unions matter.

#Unionmember

November 14, 2024 at 1:29 AM Everybody can reply

Julie Rei Goldstein

@julierei.bsky.social

is proud to be @ScreenActors #unionmember on this beautiful Labor Day! Suck it Gov. Walker!

November 23, 2024 at 11:17 PM Everybody can reply

Mark Dilley

@markdilley.bsky.social

“@tmorello: While May 1st is the REAL 'Labor Day', a shout out to everyone who is a fellow #UnionMember today!”

December 4, 2024 at 9:04 AM Everybody can reply

Sean

@jseanmac.bsky.social

youtu.be/jhBaJpzAR2k?...
Why is that guy with the yellow baseball hat carrying a “Local 59” Union flag? Is oath to the Union prevents this type of behavior. @aflcio.org you need to bring him up on charges. #unionsteward #unionmember #aflcio #tennessee

Musicians surround Proud Boys, drown them out with tubas at 'No Kings' protest in Atlanta

YouTube video by Tennessean

youtu.be

June 16, 2025 at 6:44 PM Everybody can reply

3 likes

3

Scott Reyns

@scottreyns.bsky.social

Happy Labor Day, all. Especially to my #unionmember mates.

January 27, 2025 at 11:41 AM Everybody can reply

David Schantz

@unionmember.bsky.social

#Unions Matter
#Unionmember

November 30, 2024 at 3:24 PM Everybody can reply

1 likes

1

LIUNA Midwest Region

@liunamidwest.bsky.social

Say it LOUD.... I'm UNION & PROUD! Like & share if you agree.

#Solidarity #1U #UnionProud #UnionMember #UnionStrong #MarchToOneMillion #ItsBetterInAUnion #LIUNA #FeelThePower

February 12, 2025 at 3:42 PM Everybody can reply

1 reposts 3 likes

1 3

Margy Waller

@margyartgrrl.bsky.social

Happy Labor Day! Luv this photo. Proud daughter of 2 members of AFM! @araw #laborday #unionmember http://ht.ly/dpwoj

December 2, 2024 at 6:43 AM Everybody can reply

Progress Florida

@progressflorida.org

Have #LaborDay off this weekend? It's because of #unions! #unionmember#pfla #flunion #1u #p2

February 13, 2025 at 6:19 PM Everybody can reply

Mark Dilley

@markdilley.bsky.social

If you are a wobbly #UnionMember and you know it, clap your hands - clap!

December 4, 2024 at 9:04 AM Everybody can reply

Angela

@bluecollardaughter.bsky.social

Rather work for fairness than Pharaoh. #unionmember

December 5, 2024 at 10:50 PM Everybody can reply

Julie Rei Goldstein

@julierei.bsky.social

is hoping everyone has a wonderful and safe Labor Day! So proud to be a #UnionMember #SAGMember !!! ^_^

November 24, 2024 at 11:18 AM Everybody can reply

Angela

@bluecollardaughter.bsky.social

AFL-CIO Join a Labor Day Tweet-a-Thon http://bit.ly/cXPigx (union commetary with #unionmember hashtag).

December 5, 2024 at 10:50 PM Everybody can reply

Drawmark

@drawmark.bsky.social

You Know That Sick Feeling You Usually Have on Sunday Nite? Well, Not This Week. Thank a #unionmember For Your 3-Day Weekend.

December 3, 2024 at 2:40 PM Everybody can reply

garyrlundberg.bsky.social

@garyrlundberg.bsky.social

Every #UnionMember who voted for Trump is about get screwed with a broom handle. And… Trump will enjoy it. It won't stop with government. It will overflow into the private sector. Kamala voters were woke to know it.

https://apnews.com/article/trump-union-executive-order-federal-workers-2cfa6f5fc317

Appeals court allows Trump’s anti-union order to take effect

An appeals court has cleared the way for President Donald Trump’s executive order aimed at ending collective bargaining rights for hundreds of thousands of federal employees while a lawsuit plays out.

apnews.com

May 19, 2025 at 9:41 PM Everybody can reply

Union of American Physicians and Dentists

@uapd.bsky.social

Attention all physicians employed by Los Angeles County 📣 Open enrollment starts NOW! Enroll today for additional benefits exclusive to union members, providing security for you and your loved ones ❤️ Check your email for important login details.

#1u #union #unionmember #benefits