[Click] Use STL for new element

[Alan Tang]

Dear everyone

Since I can not find documentation about how to use hashmap in click. I 
used map from stl.

Strangely map from stl is okay. But when I try to compile the new 
element, error from my system library came out, which I don't 
understand. Here is  the header file of the new element.  I also added 
the small program that proves my map from system library is okay.

#ifndef CLICK_SMARTQUEUE_HH
#define CLICK_SMARTQUEUE_HH
#include "../standard/notifierqueue.hh"
#include <map>
using namespace std;

CLICK_DECLS
/*

*/

class SmartQueue : public NotifierQueue
{
public:
  SmartQueue();
  ~SmartQueue();
 
  const char *class_name() const          {return "SmartQueue";}
  void *cast(const char *);

  void push(int port,Packet *);
 
  void statistics();
 
private:
 
  map<unsigned,unsigned> _statistics;

};

CLICK_ENDDECLS
#endif


----------------------------------------------------------


error msg (first 20%):
g++ -w -W -Wall -fno-exceptions -fno-rtti  -fpermissive -DHAVE_CONFIG_H  
-I../include -I../include -I. -I.. -I/usr/src/linux/include 
-INONE/click_wifi -DCLICK_LINUXMODULE -O2 -MD -c 
../elements/local/smartqueue.cc
In file included from /usr/include/c++/3.3/cstring:51,
                 from /usr/include/c++/3.3/bits/stl_algobase.h:65,
                 from /usr/include/c++/3.3/bits/stl_tree.h:86,
                 from /usr/include/c++/3.3/map:66,
                 from ../elements/local/smartqueue.hh:4,
                 from ../elements/local/smartqueue.cc:2:
/usr/include/string.h:38: error: parse error before `?' token
/usr/include/string.h:58: error: parse error before `?' token
In file included from /usr/include/c++/3.3/bits/stl_algobase.h:65,
                 from /usr/include/c++/3.3/bits/stl_tree.h:86,
                 from /usr/include/c++/3.3/map:66,
                 from ../elements/local/smartqueue.hh:4,
                 from ../elements/local/smartqueue.cc:2:
/usr/include/c++/3.3/cstring:79: error: `memcpy' not declared
/usr/include/c++/3.3/cstring:85: error: `memcmp' not declared
/usr/include/c++/3.3/cstring:93: error: `memset' not declared
In file included from /usr/include/limits.h:152,
                 from 
/usr/lib/gcc-lib/i486-linux/3.3.5/include/limits.h:122,
                 from 
/usr/lib/gcc-lib/i486-linux/3.3.5/include/syslimits.h:7,
                 from /usr/lib/gcc-lib/i486-linux/3.3.5/include/limits.h:11,
                 from /usr/include/c++/3.3/climits:49,
                 from /usr/include/c++/3.3/bits/stl_algobase.h:66,
                 from /usr/include/c++/3.3/bits/stl_tree.h:86,
                 from /usr/include/c++/3.3/map:66,
                 from ../elements/local/smartqueue.hh:4,
                 from ../elements/local/smartqueue.cc:2:
/usr/include/bits/xopen_lim.h:95:6: missing binary operator before token "("
/usr/include/bits/xopen_lim.h:98:7: missing binary operator before token "("
/usr/include/bits/xopen_lim.h:122:6: missing binary operator before 
token "("
In file included from /usr/include/c++/3.3/cstdlib:52,
                 from /usr/include/c++/3.3/bits/stl_algobase.h:67,
                 from /usr/include/c++/3.3/bits/stl_tree.h:86,
                 from /usr/include/c++/3.3/map:66,
                 from ../elements/local/smartqueue.hh:4,
                 from ../elements/local/smartqueue.cc:2:
/usr/include/stdlib.h: In function `long unsigned int strtoul(const char*,
   char**, int)':
/usr/include/stdlib.h:322: error: redefinition of `long unsigned int
   strtoul(const char*, char**, int)'
../include/click/glue.hh:139: error: `long unsigned int strtoul(const char*,
   char**, int)' previously defined here
In file included from /usr/include/stdlib.h:416,
                 from /usr/include/c++/3.3/cstdlib:52,
                 from /usr/include/c++/3.3/bits/stl_algobase.h:67,
                 from /usr/include/c++/3.3/bits/stl_tree.h:86,
                 from /usr/include/c++/3.3/map:66,
                 from ../elements/local/smartqueue.hh:4,
                 from ../elements/local/smartqueue.cc:2:
/usr/include/sys/types.h: At global scope:
/usr/include/sys/types.h:41: error: conflicting types for `typedef struct
   __fsid_t fsid_t'
/usr/src/linux/include/asm/statfs.h:8: error: previous declaration as 
`typedef
   struct __kernel_fsid_t fsid_t'
/usr/include/sys/types.h:62: error: conflicting types for `typedef __dev_t
   dev_t'
/usr/src/linux/include/linux/types.h:21: error: previous declaration as `
   typedef __kernel_dev_t dev_t'
/usr/include/sys/types.h:72: error: conflicting types for `typedef __mode_t
   mode_t'
/usr/src/linux/include/linux/types.h:23: error: previous declaration as `
   typedef __kernel_mode_t mode_t'
/usr/include/sys/types.h:77: error: conflicting types for `typedef __nlink_t
   nlink_t'
/usr/src/linux/include/linux/types.h:24: error: previous declaration as `
   typedef __kernel_nlink_t nlink_t'

.
.
.
---------------------------------------------

small example that works:

#include <map>
#include <string>
#include <iostream>
using namespace std;

int main( )
{
    map<string,double> salaries;

    salaries["Pat"] = 75000.00;
    cout << salaries["Pat"] << endl;
    cout << salaries["Jan"] << endl;

    map<string,double>::const_iterator itr;
    itr = salaries.find("Chris");
    if( itr == salaries.end( ) )
        cout << "Not an employee of this company!" << endl;
    else
        cout << itr->second << endl;

    return 0;
--------------------------------------------

output:
75000
0
Not an employee of this company!

Kind regards
Alan