C Exercises: Show the start of the epoch

Last update on May 27 2022 12:20:21 (UTC/GMT +8 hours)

C Date Time: Exercise-10 with Solution

Write a program in C to show the start of the epoch.

Note : epoch means the beginning of a period in the history of someone.

Sample Solution:

C Code:

#include <stdio.h>
#include <time.h>
 
int main(void)
{
    time_t epoch = 0;
    printf("\n%ld seconds since the epoch began\n", (long)epoch);
    printf("%s\n", asctime(gmtime(&epoch)));
}

Sample Output:

0 seconds since the epoch began
Thu Jan 01 00:00:00 1970

Flowchart:

C Programming Code Editor:

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C Programming: Tips of the Day

Static variable inside of a function in C

The scope of variable is where the variable name can be seen. Here, x is visible only inside function foo().

The lifetime of a variable is the period over which it exists. If x were defined without the keyword static, the lifetime would be from the entry into foo() to the return from foo(); so it would be re-initialized to 5 on every call.

The keyword static acts to extend the lifetime of a variable to the lifetime of the programme; e.g. initialization occurs once and once only and then the variable retains its value - whatever it has come to be - over all future calls to foo().

Ref : https://bit.ly/3fOq7XP