andymatuschak

//
//  NSObject+BlockObservation.h
//  Version 1.0
//
//  Andy Matuschak
//  [email protected]
//  Public domain because I love you. Let me know how you use it.
//

#import <Cocoa/Cocoa.h>

joelrfcosta

#define SingletonWithBlock(block)   static dispatch_once_t pred = 0; \
                                      __strong static id _sharedObject = nil; \
                                      dispatch_once(&pred, ^{ \
                                        _sharedObject = block(); \
                                      }); \
                                      return _sharedObject; \

@implementation SingletonClass

+ (id)sharedInstance

justinmstuart

#import "NSArray+Statistics.h"

@implementation NSArray (Statistics)

- (NSNumber *)sum {
    NSNumber *sum = [self valueForKeyPath:@"@sum.self"];
    return sum;
}

- (NSNumber *)mean {

mx4492

#include <stdio.h>

/**
 This only works if the block in question is called synchronously.
 */
void try0() {
  typedef void(^RecursiveBlock)();

  __block int i = 5;

bzerangue

Verify and Repair Disk Permissions via Terminal (Mac OS X)

Verify Permissions

diskutil verifyPermissions /

Repair Permissions

diskutil repairPermissions /

dmr121

//
//  PomodoroPicker.swift
//  pomodoro
//
//  Created by David Rozmajzl on 1/1/22.
//

import SwiftUI

struct PomodoroPicker<Content, Item: Hashable>: View where Content: View {