C Exercises: Show the first of calendar time
C Date Time: Exercise-9 with Solution
Write a program in C to show the first of calendar time.
Sample Solution:
C Code:
#include <stdio.h>
#include <time.h>
int main(void)
{
struct tm first = {.tm_mday=1};
mktime(&first);
printf("\n%s\n", asctime(&first));
}
Sample Output:
Sun Jan 01 00:00:00 1900
Flowchart:

C Programming Code Editor:
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Next: Write a program in C to show the start of the epoch.
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C Programming: Tips of the Day
What does (x ^ 0x1) != 0 mean?
The XOR operation (x ^ 0x1) inverts bit 0. So the expression effectively means: if bit 0 of x is 0, or any other bit of x is 1, then the expression is true.
Conversely the expression is false if x == 1.
So the test is the same as:
if (x != 1)
and is therefore (arguably) unnecessarily obfuscated.
Ref :https://bit.ly/2NIisQM
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