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Determine time between two Dates

Liger XT5 (19)
I'm working on a warranty database and in need of a help on determining if a particular warranty is out of date.

I've come along the code of determining by the number of seconds,
http://www.unix.com/302086887-post2.html
which I used as a template here.
(Commented out code was trial of another code, then later realized I couldn't determine the time of greater, equal, or less than 5 years.)

I don't expect a great answer, just some outside opinions.

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#include "Include.h"

void message(string x){
	if(x=="OOW"){
		HANDLE hOut;
		hOut = GetStdHandle(STD_OUTPUT_HANDLE);
		
		SetConsoleTextAttribute(hOut,
			BACKGROUND_RED |
			BACKGROUND_INTENSITY);
		cout << "OUT OF WARRANTY" << endl;
	}if(x=="WAR"){
		HANDLE hOut;
		hOut = GetStdHandle(STD_OUTPUT_HANDLE);
		
		SetConsoleTextAttribute(hOut,
			BACKGROUND_GREEN |
			BACKGROUND_INTENSITY);
		cout << "WARRANTIED" << endl;

	}
}

time_t to_seconds(const char *date)
{
        struct tm storage={0,0,0,0,0,0,0,0,0};
        char *p=NULL;
        time_t retval=0;

        p=(char *)strptime(date,"%d-%b-%Y",&storage);
        if(p==NULL)
        {
                retval=0;
        }
        else
        {
                retval=mktime(&storage);
        }
        return retval;
}



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#include "Include.h"

void clrscr();
void message(string x);
time_t to_seconds(const char *date);
//void compareDates(string date1, string date2);

void view(){
	
	struct regArray {
		string owner;
		string location;
		string serial;
		string charger;
		string day;
		string month;
		string year;
	};
	string monthJAN;
	int size = 1;
	int x = 0;
	int y = 0;
	regArray* registration;
	registration = new regArray[size];
	string search;
	time_t rawtime;
		struct tm * timeinfo;
		char buffer1 [8];
		time ( &rawtime );
		char *date1;
		char *date2;
	string dash="-";

	clrscr();
	cout << "Loading Registry Data Base...";
	ifstream reg;
	reg.open("Registry.txt", ios::app);
	if (!reg.is_open()) { cout << "File Currupted or Lost!" << endl; }
	else {
		for (x=0; !reg.eof(); x++){
				getline(reg, registration[x].owner);	//Owner; Person's name or Business
				getline(reg, registration[x].location);	//Location bought from
				reg >> registration[x].serial;			//Serial
				reg >> registration[x].charger;			//Charger
				getline(reg, registration[x].month, '-');					//Date
				getline(reg, registration[x].day, '-');
				getline(reg, registration[x].year);
				//reg >> Temp;							//File input fix

				regArray* reg2 = new regArray[size];
				for (int i = 0; i < size; ++i){
					reg2[i] = registration[i];}
				delete[] registration;
				++size;
				registration = new regArray[size];
				for (int i = 0; i < size - 1; ++i){
					registration[i] = reg2[i];}
				delete[] reg2;
				y++;
		}
	}
	reg.close();
	cout << " DONE!" << endl;
	clrscr();

	getline(cin, search);
	string temp;
	do{
		temp = "nTrue";
		cout << "1. Old Timer          7. Standard" << endl;
		cout << "2. Super 12volt       8. Goat Herder" << endl;
		cout << "3. 12v Solar          9. 6v Solar" << endl;
		cout << "4. Beck 300          10. Beck 120" << endl;
		cout << "5. Pioneer 3000      11. Pioneer 5000" << endl;
		cout << "6. Pioneer 8000\n" << endl;
		cout << "Enter Search Term :  ";
		getline(cin, search);
		strupr((char *) search.c_str());
		clrscr();
		for(x=0; x<=y; x++){

			string str = registration[x].owner;
			string str2 = search;
			size_t found;

			found=str.find(str2);
			if (found!=string::npos){
				temp = "true";}

			if(temp!="true"){
				string str = registration[x].location;
				found=str.find(str2);
				if (found!=string::npos){
					temp = "true";}
			}

		

			if (temp == "true" || search == registration[x].serial || search == registration[x].charger || search == registration[x].day || search == registration[x].month || search == registration[x].year){
				cout << setw(12) << left << "Name:  " << setw(20) << left << registration[x].owner << setw(15) << left << "Bought From:  " << registration[x].location << endl;
				cout << setw(12) << left << "Serial #:  " << setw(20) << left << registration[x].serial;
					if(registration[x].charger=="1"){
						cout << setw(12) << left << "Old Timer" << endl;
					}if(registration[x].charger=="2"){
						cout << setw(12) << left <<"Super 12volt" << endl;
					}if(registration[x].charger=="3"){
						cout << setw(12) << left <<"12v Solar" << endl;
					}if(registration[x].charger=="4"){
						cout << setw(12) << left <<"Beck 300" << endl;
					}if(registration[x].charger=="5"){
						cout << setw(12) << left <<"Pioneer 3000" << endl;
					}if(registration[x].charger=="6"){
						cout << setw(12) << left <<"Pioneer 8000" << endl;
					}if(registration[x].charger=="7"){
						cout << setw(12) << left <<"Standard" << endl;
					}if(registration[x].charger=="8"){
						cout << setw(12) << left <<"Goat Herder" << endl;
					}if(registration[x].charger=="9"){
						cout << setw(12) << left <<"6v Solar" << endl;
					}if(registration[x].charger=="10"){
						cout << setw(12) << left <<"Beck 120" << endl;
					}if(registration[x].charger=="11"){
						cout << setw(12) << left <<"Pioneer 5000" << endl;
					}
					cout << setw(10) << left << "Registered:" << registration[x].month << "-" << registration[x].day << "-" << registration[x].year;
					if (registration[x].month == "1" || registration[x].month == "01"){
						monthJAN = "JAN";}if (registration[x].month == "2" || registration[x].month == "02"){
						monthJAN = "FEB";}if (registration[x].month == "3" || registration[x].month == "03"){
						monthJAN = "MAR";}if (registration[x].month == "4" || registration[x].month == "04"){
						monthJAN = "APR";}if (registration[x].month == "5" || registration[x].month == "05"){
						monthJAN = "MAY";}if (registration[x].month == "6" || registration[x].month == "06"){
						monthJAN = "JUN";}if (registration[x].month == "7" || registration[x].month == "07"){
						monthJAN = "JUL";}if (registration[x].month == "8" || registration[x].month == "08"){
						monthJAN = "AUG";}if (registration[x].month == "9" || registration[x].month == "09"){
						monthJAN = "SEP";}if (registration[x].month == "10"){
						monthJAN = "OCT";}if (registration[x].month == "11"){
						monthJAN = "NOV";}if (registration[x].month == "12"){
						monthJAN = "DEC";}
					temp = registration[x].day + dash + monthJAN + dash + registration[x].year;
					string::traits_type::copy( date1, temp.c_str(), temp.length() +1 );
					//temp = registration[x].day + dash + registration[x].month + dash + registration[x].year;
					//d1 = temp;
					timeinfo = localtime ( &rawtime );
					strftime (buffer1,8,"%d-%m-%y",timeinfo);
					date2 = buffer1;

					//compareDates(d1, d2);


					time_t d1=to_seconds(date1);
					time_t d2=to_seconds(date2);

					
					if((157784630= d1 - d2) || d2==d1){
						string m="WAR";
						message(m);}
					if(d2<d1){
						string m="OOW";
						message(m);}
					cout << "\n\n";
			temp = "nTrue";
			}
		}
		system("pause");
		clrscr();
	}while(search!="I'M DONE");
}


include.h
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#include <iostream>
#include <iomanip>
#include <string>
//#include <cctype>
#include <ctime>
#include <sstream>
#include <fstream>
#include <stdio.h>
#include <time.h>
#include <string.h>
#include <windows.h>
using namespace std;
int main ();


errors:
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1>c:\users\striker\desktop\serial sorter\serial sorter\view.cpp(154) : warning C4244: '=' : conversion from 'time_t' to 'int', possible loss of data
1>c:\users\striker\desktop\serial sorter\serial sorter\view.cpp(154) : error C2106: '=' : left operand must be l-value
1>misc.cpp
1>c:\users\striker\desktop\serial sorter\serial sorter\misc.cpp(58) : error C3861: 'strptime': identifier not found
1>Generating Code...
1>Build log was saved at "file://c:\Users\Striker\Desktop\Serial Sorter\Serial Sorter\Debug\BuildLog.htm"
1>Serial Sorter - 2 error(s), 5 warning(s)


I have an int main that is basically a menu that calls in the void view(); from a menu. I presume just changing "void view" to "int main" would allow the program to run just the same.
sammy34 (195)
I don't believe that strptime is supported on Windows (apparently only on Unix). Perhaps this external thread can help you:

http://social.msdn.microsoft.com/Forums/en-US/vclanguage/thread/15f07391-4c2f-4479-8cb5-2688d2cd7639

The other errors are probably caused by the fact that you've got an assignment operator where there should be a comparison operator.

I.e. you have this:

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if((157784630= d1 - d2) || d2==d1)
{ ...}


you should have something like this:

 
 
if(157784630 >= d1 - d2)


which I think is what you're trying to do, right (making sure the difference in time is less than the warranty period)?

Hope that helps.
Liger XT5 (19)
In a project in class I made a small piece of code that creates the file name depending on the date and time.

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		timeinfo = localtime ( &rawtime );
		strftime (buffer,80,"%y-%m-%d %H+%M+%S.txt",timeinfo);
		dateTime = buffer;
		cout << "\n\n>>Saved to:  " << dateTime << endl;


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FILE * pFile;
	  pFile = fopen (dateTime.c_str(),"w");
		if (pFile!=NULL)


never got an error with it.
only difference is that the last two pieces of code were made in c++ 2005, the code in the first post was made in c++ 2008

thanks for the catch on the >=, I haven't got the program to work with this piece of code, so that is one of the main reasons I didn't notice it. But I did this morning when I took my computer out of hibernate and the code was looking at me.

edit:
I replaced the strftime with sscanf_s in both locations and the error went away. I got 1 succeed so I ran the program, now I got an issue with the line of code:

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temp = registration[x].day + dash + monthJAN + dash + registration[x].year;
string::traits_type::copy( date1, temp.c_str(), temp.length() +1 );  //Error here, read below.


Error when running the program:
Unhandled exception at 0x60abee64 in Serial Sorter.exe: 0xC0000005: Access violation writing location 0x0041d8b8.

I don't think this would help you guys any stating the error.
Each part in the temp line area all string variables, then in the second line, I was trying to convert the string temp to date1 which is "char *date1"

edit2:
I now have that line of code working by replacing:
 
 
string::traits_type::copy( date1, temp.c_str(), temp.length() +1 );

with
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date1 = (char*)malloc( sizeof( char ) *(temp.length() +1) );
strcpy( date1, temp.c_str() );


The program runs up until it hits the line in time_t to_seconds:
 
 
p=(char *)sscanf_s(date,"%d-%b-%Y",&storage);

I get the Debug Assertion Failed message.
Last edited on
Liger XT5 (19)
After messing with the code, I made my own time difference function to convert the dates to days.
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