Re: [Boost-users] [Serialization] Serializing a map

24 May 2006

      Thanks Robert, that was it! I haven't made it to the Rational section,
so far. But I will, promised. ;-))

This probably has been discussed a million times, already. But, is it
possible to change the line 36 in collections_save_imp.hpp from

    unsigned int count = s.size();

to

   size_t count = s.size();

My compiler, VC 7.1 is going crazy and spits out a warning of 100 lines !!!

Thanks,
Christian

On 5/24/06, Robert Ramey  wrote:
...
This is explainined in the section - "rationale" in the documentation.
The following changes would make it work;
Christian Henning wrote:
...
Hi there, I was just toying around with the boost serialization lib.
Unfortunately I have a problem with serializing a map. Here is what I
did:
#include <map>
#include <string>
#include <iostream>
#include <algorithm>
#include <fstream>
#include 
#include 
#include 
using namespace std;
struct Settings
{
  int Brightness;
  int Contrast;
};
// Table indexed by strings
typedef pair< string, string > Key;
typedef map< Key, Settings* > Table;
int _tmain(int argc, _TCHAR* argv[])
{
  Table aTable;
aTable[ make_pair("Mueller","Meier") ] = new Settings();
  aTable[ make_pair("Meier","Mueller") ] = new Settings();
  aTable[ make_pair("Meier","Meier")   ] = new Settings();
Settings* pSettings = aTable[ make_pair("Mueller","Meier") ];
  pSettings->Brightness = 99;
  pSettings->Contrast   = 8;
{
    const Table & stable = aTable;
...
ofstream ofs( "Settings.txt" );
  boost::archive::text_oarchive oa( ofs );
  oa << sTable;
}
return 0;
}
Robert Ramey
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