to get time and write it to a file in c

[santhoshg]

i have to write the current time to a file ?how to do it

[kiseitai2]

I have never extracted the system time in c++, but I recently worked on my own io class. As a result, I can help you with the part that deals with writing to a file. First, become familiar with the ofstream class (http://www.cplusplus.com/reference/fstream/ofstream/). The class is not hard to implement as you basically need to specify the file to open. If no file with the specified name is found, ofstream will create a new file with that name. Then, you can pass a string by using the << operator, such that outputFile << timeString;. Finally, close the file so you don't leak file handles. I was a bit vague because I want you to try it and come back with clarification questions. :D

[Gobi Sakthivel]

 
 
 
#include <stdio.h>
#include <time.h>
#include <sys/time.h>
 
void getTime()
{
    FILE* fp = fopen("Time.txt","w+");
    struct timeval usec_time;
    time_t now = time(0);
    gettimeofday(&usec_time,NULL);
    // format time
    struct tm *current = localtime(&now);
    printf("%d:%d:%d\n",current->tm_hour, current->tm_min, current->tm_sec);
    fprintf(fp,"%d:%d:%d\n",current->tm_hour, current->tm_min, current->tm_sec);
}
 
 
 
int main(int argc,char* argv[])
{
    getTime();
}