Generate random string of specified length.

RandomStringWithLength

/*************************************************************************
	> Function : Generate random string of specified length.
	> Author : TL Song
	> EMail : songtianlun@frytea.com
	> Created Time : Fri 18 Sep 2020 11:52:32 AM CST 
 ************************************************************************/

void RandomString(char * str, int len)
{
    int RandomAscii;
    memset(str, 0, len);
    srand((unsigned)time(NULL));
    for(int i = 0;i < len; i++)
    {
        RandomAscii = rand() % 93 + 33;
        //sprintf(str + i, "%x", RandomAscii );
        *(str + i) = RandomAscii;
        //std::cout << "Random Ascii : " << RandomAscii << " Char: " << (str + i) << std::endl;
        if ( i == len - 1)
        {
            * ( str + i ) = '\0';
        }
    }
}