// //  CCRandom.m //  CCFC // //  Created by xichen on 11-12-23. //  Copyright 2011 ccteam. All rights reserved. // #import "CCRandom.h" #import 
     
       #import 
      
        #import "CCLog.h" @implementation CCRandom // it uses a slightly more compicated argorithm than common random + (long)generateRandomNum {
   static long randomValue = 0;         srandom((unsigned)mach_absolute_time() + randomValue);         randomValue = random(); return random(); } + (NSString *)generateRandomStringByLen:(int)len {
   char *str = (char *)malloc(len + 1); if(!str) return nil;         memset(str, 0, len + 1); for(int i = 0; i < len; ++i)         {
                   str[i] = abs([self generateRandomNum] % 10) + '0';                 LOG_CHAR(str[i]);         }         LOG_CSTR(str);         NSString *ret = [NSString stringWithUTF8String:str];         free(str); return ret; } @end
      
     

 

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