Core Audio result checking

#define checkResult(result,operation) (_checkResult((result),(operation),strrchr(__FILE__, '/'),__LINE__))

static inline BOOL _checkResult(OSStatus result, const char *operation, const char* file, int line) {
    if ( result != noErr ) {
        NSLog(@"%s:%d: %s result %d %08X %4.4s\n", file, line, operation, (int)result, (int)result, (char*)&result);
        return NO;
    }
    return YES;
}