Hi,
I urgently need some help on system date and time.Here's the code
#include<stdio.h>
#include<time.h>
main()
{
time_t rawtime;
struct tm *timeinfo;
time(&rawtime);
timeinfo=localtime(&rawtime);
int hour2;
int minute2;
int seconds2;
char end1[5];
int end=0;
char diff[5];
char start[5];
int i=0;
char ch[5];
char ch1[5];
FILE *fp2;
FILE *fp1;
FILE *fp3;
fp2=fopen("time.txt","r");
while(!feof(fp2))
{
fscanf(fp2,"%c",&ch[i]);
start[i]=ch[i];
printf("%c",start[i]);
}
printf("\n");
fp1=fopen("time2.txt","w");
hour2=timeinfo->tm_hour;
minute2=timeinfo->tm_min;
seconds2=timeinfo->tm_sec;
end=(hour2*3600)+(minute2*60)+seconds2;
fprintf(fp1,"%d",end);
fclose(fp1);
fp1=fopen("time2.txt","r");
while(!feof(fp1))
{
fscanf(fp1,"%c",&ch1[i]);
end1[i]=ch1[i];
printf("%c",end1[i]);
}
printf("\n");
fp3=fopen("diff.txt","w");
for(i=0;i<=4;i++)
{
diff[i]=(int)end1[i]-(int)start[i];
fprintf(fp3,"%c",(int)diff[i]+48);
}
}and here is one more
#include<stdio.h>
#include<time.h>
main()
{
time_t rawtime;
struct tm *timeinfo;
time(&rawtime);
timeinfo=localtime(&rawtime);
int hour1;
int minute1;
int seconds1;
int start=0;
FILE *fp1;
fp1=fopen("time.txt","w");
hour1=timeinfo->tm_hour;
minute1=timeinfo->tm_min;
seconds1=timeinfo->tm_sec;
start=(hour1*3600)+(minute1*60)+seconds1;
//fprintf(fp1,"%d:",hour1);
//fprintf(fp1,"%d:",minute1);
//fprintf(fp1,"%d",seconds1);
fprintf(fp1,"%d",start);
}
