Commander Pirx wrote:

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

Would be interesting whats your format string looks like. Not all format flags work with all date_time classes. %z (Time zone) for instance works only with local_date_time.

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

It seems that no matter what formatting I try to use, it doesn’t work. Example:

TimeConverter sampleFile.txt    %d:%m:%Y_%H:%M:%S    %m:%d:%Y_%H:%M:%S

sampleFile.txt:

05:01:2007_23:08:02

06:01:2007_23:09:04

expected output: (month and day positions switched)

2007-Jan-05 23:08:02

01:05:2007_23:08:02

2007-Jan-06 23:09:04

01:06:2007_23:09:04

output:

2007-Jan-05 23:08:02

2007-Jan-05 23:08:02

2007-Jan-06 23:09:04

2007-Jan-06 23:09:04

Code is below

#include <fstream>

#include <functional>

#include <iostream>

#include <sstream>

#include "boost/date_time/gregorian/gregorian.hpp"

#include "boost/date_time/posix_time/posix_time.hpp"

#include "boost/date_time/local_time/local_time.hpp"

using namespace std;

int main(int argc, char** argv)

{

     stringstream ss;

     ifstream in( argv[1] );

     string inputFormat = argv[2];

     string outputFormat = argv[3];

     boost::local_time::local_time_facet* output_facet =

          new boost::local_time::local_time_facet();

     boost::local_time::local_time_input_facet* input_facet =

          new boost::local_time::local_time_input_facet();

     ss.imbue(locale(locale::classic(), output_facet));

     ss.imbue(locale(ss.getloc(), input_facet));

     output_facet->format( outputFormat.c_str() );

     input_facet->format( inputFormat.c_str() );

     while ( !in.eof() )

     {

          string s;

          getline( in, s );

          ss<<s;

          boost::posix_time::ptime p;

          ss>>p;

          string s1 = boost::posix_time::to_simple_string(p);

          cout<<s1<<"\n";

          ss.str("");

          ss<<p;

          string s2 = ss.str();

          cout<<s2<<"\n";

          std::ws(in);

          ss.str("");

     }

}