centos generate uuid,install libuuid-devel,compile -luuid

#include <iostream>
#include <stdio.h>
#include <uuid/uuid.h>

char * get_uuid()
{
        uuid_t new_uuid;
        uuid_generate(new_uuid);

        //uuid_generate_time_safe(new_uuid);
        char *uuid_value=(char*)malloc(40);
        //uuid_unparse_lower(new_uuid,uuid_value);
        //uuid_parse(uuid_value,new_uuid);
        uuid_unparse(new_uuid,uuid_value);
        return uuid_value;
}


void print_uuid(const int&len)
{
        for(int i=0;i<len;i++)
        {
                std::cout<<i+1<<","<<get_uuid()<<std::endl;
        }
}

int main(int args,char** argv)
{
        print_uuid(atoi(argv[1]));
        std::cout<<"Finished in "<<__FUNCTION__<<std::endl;
}

 g++ -std=c++0x -I. *.cpp -o h1 -luuid;

./h1 100;