my common.h for ObjC

common.h

//
//  common.h
//  Common helper stuff
//
//  Created by Christopher Loessl.
//  Copyright (c) 2013 Christopher Loessl. All rights reserved.
//

#ifndef hashier_common_h
#define hashier_common_h

// LOG
#ifdef DEBUG
    #define DLog(...) NSLog(@"(%@:%d %s) %@", [[NSString stringWithUTF8String:__FILE__] lastPathComponent], __LINE__, __PRETTY_FUNCTION__, [NSString stringWithFormat:__VA_ARGS__])
#else
    #define DLog(...)
#endif

// Color
#define UIColorFromRGB(rgbValue) [UIColor colorWithRed:((float)((rgbValue & 0xFF0000) >> 16))/255.0 green:((float)((rgbValue & 0xFF00) >> 8))/255.0 blue:((float)(rgbValue & 0xFF))/255.0 alpha:1.0]

// Device
#define IS_WIDESCREEN ( fabs( ( double )[ [ UIScreen mainScreen ] bounds ].size.height - ( double )568 ) < DBL_EPSILON )
#define IS_IPHONE ( [ [ [ UIDevice currentDevice ] model ] isEqualToString: @"iPhone" ] )
#define IS_IPOD   ( [ [ [ UIDevice currentDevice ] model ] isEqualToString: @"iPod touch" ] )
#define IS_IPHONE_5 ( IS_IPHONE && IS_WIDESCREEN )

#define SYSTEM_VERSION_EQUAL_TO(v)                  ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedSame)
#define SYSTEM_VERSION_GREATER_THAN(v)              ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedDescending)
#define SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(v)  ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedAscending)
#define SYSTEM_VERSION_LESS_THAN(v)                 ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedAscending)
#define SYSTEM_VERSION_LESS_THAN_OR_EQUAL_TO(v)     ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedDescending)

static inline long NSIntToLong(NSInteger i) {return (long)i;}                       // %ld
static inline unsigned long NSUIntToLong(NSUInteger i) {return (unsigned long)i;}   // %lu

// https://icculus.org/SteamDevDays/SteamDevDays2014-LinuxPorting.pdf
#define STUBBED(x) do { \
    static bool seen_this = false; \
    if (!seen_this) { \
        seen_this = true; \
        fprintf(stderr, "STUBBED: %s at %s (%s:%d)\n", x, __FUNCTION__, __FILE__, __LINE__); \
    } \
} while (0)

#endif