Naming folders after the date - my futile attempt

guys, i have a problem that i cant name folders after the date we are in.

in the below code: GPpsTime has been calculated and updates regulary. and "day" is the current number of day of the year. the file creation bit works perfectly as i have tried it elsewhere.

my attempt below doesnt work because i might be acting silly and assuming that

Code:

&day

will automatically change the name of the new folder.

can anyone help me?

my attempt

Code:

#include <stdio.h>
#include <iostream>
#include <stdlib.h>
#include <time.h>
#include <windows.h>


//******************************************************************

//Creates a new directory everytime the clock ticks over to 00:00:00.

//Directory is given the name of the current day

//uses names "GpsTime" and "Day" from time conversion routine

//Creates 24 new files within directory with hour names

//Continues onto writing routine

//******************************************************************

#define MAX 24

int main()
{

int clock, hour, last_hour = -1;

while(1)
{
		  unsigned int hour = (GpsTime / 3600) % 24;  //current hour we are in
          if (hour == 0 && last_hour == 11)   //when hour ticks over to 0, create new directory
          {
               CreateDirectory("c:\\temp\\day", NULL);  //creates a folder with current day as name
			   printf("Directory created\n");

          }
          last_hour = hour;

}
			SetCurrentDirectory("c:\\temp\\&day");		//sets current directory to day for creation of files
{

char buf[BUFSIZ];

FILE *fp;
int i;

for (i=0; i<MAX; i++)
	{
    sprintf(buf, "%d h.txt", i+1);
    if ((fp = fopen(buf, "a+")) == NULL)
	{
        fprintf(stderr, "\n\n\n\n\nCan't open %s!\n\n\n\n\n", buf);
        continue;
	}
	}

	printf("\n\n\n\n\n\nNew directory and files created, Program will now continue\n\n\n\n");;

	}
}

Yeah, looks like you're mixing say VB's string concatenation with C++

In C, I'd use sprintf, though some C++ purists would say use strstream

Code:

char newdir[1000];
sprintf( newdir, "c:\\temp\\day%d-hour%d", day, hour );
CreateDirectory(newdir, NULL);

You can fiddle with the formatting and content as much as you want to

I wrote a program doing the same thing the other day
ill post the code you can have a look :

PHP Code:

#include <iostream>
#include <fstream>
#include <time.h>
#include <string>
#include <vector>
#include <process.h>

using namespace std;

int main()
{
    struct tm when;
    __time64_t now;
    _time64( &now );
    when = *_localtime64( &now );
    vector<string> vDate;
    char * date;
    date = asctime( &when );
    string sDate;
    string sDate3;
    sDate = date;
    sDate3.insert(0, sDate, 0, 10);
    sDate3 += ".txt";
    fstream file;
    file.open(sDate3.c_str(), ios::in);
    if(!file.fail())
    {
        sDate3.insert(0, "type \"");
        sDate3.insert(20, "\"");
        system(sDate3.c_str());
        cout << endl << endl;
        cout << "Press any key to Continue!" << endl;
        cin.get();
    }

    char * date2;
    string sDate2;
    string sDate4;
    string sInfo;
    int quanity;
    bool EXIT = false;
    while(EXIT == false)
    {
        cout << "Enter Customer Info : " << endl;
        getline(cin, sInfo, '\n');
        cout << "Enter Quanity : ";
        cin >> quanity;
        quanity -= 20;
        if(sInfo[0] == '\0')
        {
            EXIT = true;
        }
        else
        {
        cin.ignore();
        if(quanity < 0)
        {
            cout << "Quanity Must be more then 20" << endl;
            cout << "Re enter the amount : ";
            cin >> quanity;
            cin.ignore();
        }
            for(int i = 0; i != 3; i++)
            {
                when.tm_mday = when.tm_mday + quanity;
                _mktime64( &when );
                date2 = asctime( &when );
                sDate2 = date2;
                sDate4.insert(0, sDate2, 0, 10);
                vDate.push_back(sDate4);
                sDate4 += ".txt";
                fstream file1;
                file1.open(sDate4.c_str(), ios::app | ios::out);
                if(i == 0)
                {
                    file1 << sInfo << endl;
                }
                else
                {
                    file1 << endl << "*** ORIGINAL REMIND DATE " << vDate[0] << " ***" << endl;
                    file1 << sInfo << endl << endl;
                }
                file1.close();
                sDate2.clear();
                sDate4.clear();
            }
        }
    }
    return 0;
}