text: //
  //  GMGridView-Constants.h
  //  GMGridView
  //
  //  Created by Gulam Moledina on 11-12-14.
  //  Copyright (c) 2011 GMoledina.ca. All rights reserved.
  //
  //  Latest code can be found on GitHub: https://github.com/gmoledina/GMGridView
  // 
  //  Permission is hereby granted, free of charge, to any person obtaining a copy
  //  of this software and associated documentation files (the "Software"), to deal
  //  in the Software without restriction, including without limitation the rights
  //  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  //  copies of the Software, and to permit persons to whom the Software is
  //  furnished to do so, subject to the following conditions:
  // 
  //  The above copyright notice and this permission notice shall be included in
  //  all copies or substantial portions of the Software.
  // 
  //  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  //  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  //  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  //  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  //  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  //  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  //  THE SOFTWARE.
  //
  
  
  #ifndef GMGridView_GMGridView_Constants_h
  #define GMGridView_GMGridView_Constants_h
  
  
  //
  // ARC on iOS 4 and 5 
  //
  
  #if __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_5_0 && !defined (GM_DONT_USE_ARC_WEAK_FEATURE)
  
  #define gm_weak   weak
  #define __gm_weak __weak
  #define gm_nil(x)
  
  
  #else
  
  #define gm_weak   unsafe_unretained
  #define __gm_weak __unsafe_unretained
  #define gm_nil(x) x = nil
  
  #endif
  
  
  //
  // Code specific
  //
  
  #define GMGV_INVALID_POSITION -1
  
  
  
  
  #endif
  