mikeash

// clang -framework Foundation -fobjc-arc -O3 test.m

#import <Foundation/Foundation.h>


@interface Slice : NSObject
@property NSInteger start;
@property NSInteger length;
@end
@implementation Slice

jwo

class Api::RegistrationsController < Api::BaseController
  
  respond_to :json
  def create

    user = User.new(params[:user])
    if user.save
      render :json=> user.as_json(:auth_token=>user.authentication_token, :email=>user.email), :status=>201
      return
    else