优化字符串定义的宏

gistfile1.m

#define OC(str) [NSString stringWithCString:(str) encoding:NSUTF8StringEncoding]

#ifdef DEBUG
#  define LOG(fmt, ...) do {                                            \
        NSString* file = [[NSString alloc] initWithFormat:@"%s", __FILE__]; \
        NSLog((@"%@(%d) " fmt), [file lastPathComponent], __LINE__, ##__VA_ARGS__); \
        [file release];                                                 \
    } while(0)
#  define LOG_METHOD NSLog(@"%s", __func__)
#  define LOG_CMETHOD NSLog(@"%@/%@", NSStringFromClass([self class]), NSStringFromSelector(_cmd))
#  define COUNT(p) NSLog(@"%s(%d): count = %d\n", __func__, __LINE__, [p retainCount]);
#  define LOG_TRACE(x) do {printf x; putchar('\n'); fflush(stdout);} while (0)
#else
#  define LOG(...)
#  define LOG_METHOD
#  define LOG_CMETHOD
#  define COUNT(p)
#  define LOG_TRACE(x)
#endif

//真机调，保存在文件中
- (void)redirectNSLogToDocumentFolder{
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES);
    NSString *documentsDirectory = [paths objectAtIndex:0];
    NSString *fileName =[NSString stringWithFormat:@"%@.log",[NSDate date]];
    NSString *logFilePath = [documentsDirectory stringByAppendingPathComponent:fileName];
    freopen([logFilePath cStringUsingEncoding:NSASCIIStringEncoding],"a+",stderr);
}

- (void)applicationDidFinishLaunching:(UIApplication *)application {
    // 真机测试时保存日志
    if ([CDeviceInfo getModelType] != SIMULATOR) {
        [self redirectNSLogToDocumentFolder];
    }

    .....
}