Logging and assertion macros

Prefix.pch

Source: http://www.cimgf.com/2010/05/02/my-current-prefix-pch-file/

// Logging
#ifdef DEBUG
#define DLog(...) NSLog(@"%s %@", __PRETTY_FUNCTION__, [NSString stringWithFormat:__VA_ARGS__])
#define ALog(...) [[NSAssertionHandler currentHandler] handleFailureInFunction:[NSString stringWithCString:__PRETTY_FUNCTION__ encoding:NSUTF8StringEncoding] file:[NSString stringWithCString:__FILE__ encoding:NSUTF8StringEncoding] lineNumber:__LINE__ description:__VA_ARGS__]
#else
#define DLog(...) do { } while (0)
#ifndef NS_BLOCK_ASSERTIONS
#define NS_BLOCK_ASSERTIONS
#endif
#define ALog(...) NSLog(@"%s %@", __PRETTY_FUNCTION__, [NSString stringWithFormat:__VA_ARGS__])
#endif

// Assertions
#define ZAssert(condition, ...) do { if (!(condition)) { ALog(__VA_ARGS__); }} while(0)

// Time meassurement
#define TICK NSDate *startTime = [NSDate date]
#define TOCK NSLog(@"Elapsed Time: %f", -[startTime timeIntervalSinceNow])

/** Weak/Strong */
#define WEAKIFY(var) \
__weak typeof(var) weakVar = var;

#define STRONGIFY(var) \
__strong typeof(var) var = weakVar; \
if (var == nil) return;

 
#define ZAssert(condition, ...) do { if (!(condition)) { ALog(__VA_ARGS__); }} while(0)