"FAQ > How do I... (Level 2) > Work with dates and times" - Queries.

Dear experts,

I was browsing through the FAQs when I stumbled on one portion:

Code:

---

int leap_year ( int year )
{
  return year % 4 == 0 && ( year % 100 != 0 || year % 400 == 0 );
}

---

I do not understand the expression. Can it be broken down to a few more lines so that newbies like me can understand? Please? :D

Thanks.

Code:

---

int leap_year(int year)
{
        if(year % 4 ==0)
        {
                          if(year % 100 != 0 || year % 400 == 0)
                          return true;
    }
}

---

ssharish2005

if(year % 4 ==0)

...This means if 4 percent of the variable year equals zero.
I hope you know what Percent means:-

Code:

---

4/100 * year

---

if(year % 100 != 0 || year % 400 == 0)

...And this means if 100 percent of year does not equal zero or 400 percent equals zero return true.

I hope this is helpful



Ps. I'm lying

That's not very nice. I'm gonna get Webmaster and have you band.

Quote:

---

Originally Posted by treenef

if(year % 4 ==0)

...This means if 4 percent of the variable year equals zero.
I hope you know what Percent means:-

Code:

---

4/100 * year

---

if(year % 100 != 0 || year % 400 == 0)

...And this means if 100 percent of year does not equal zero or 400 percent equals zero return true.

I hope this is helpful



Ps. I'm lying

---

EDIT: What are you trying to say?

Quote:

---

Originally Posted by ssharish2005

Code:

---

int leap_year(int year)
{
        if(year % 4 ==0)
        {
                          if(year % 100 != 0 || year % 400 == 0)
                          return true;
    }
}

---

ssharish2005

---

Thanks. That's sweet.:)

Quote:

---

Originally Posted by stevong

Why?

---

I seriously seriously hope you saw the whited out text in Treenef's post... and I was talking to him, by the way, and it was a joke.

Quote:

---

Originally Posted by SlyMaelstrom

I seriously seriously hope you saw the whited out text in Treenef's post... and I was talking to him, by the way, and it was a joke.

---

Haha. yea. I didnt read his post clearly.

I almost fell off my chair when I read his post all over again.

So... you do understand what the modulus operator is, right?

Quote:

---

Originally Posted by SlyMaelstrom

So... you do understand what the modulus operator is, right?

---

Yes I do.

The intention of this thread is to hope that someone can break down that single line of code into simpler statements in which layman/newbies can understand. :)

Thanks to ssharish2005.

Code:

---

return year % 4 == 0 && ( year % 100 != 0 || year % 400 == 0 );

---

Code:

---

        if(year % 4 ==0)
        {
                          if(year % 100 != 0 || year % 400 == 0)
                          return true;
    }

---

Quote:

---

Originally Posted by stevong

Code:

---

int leap_year ( int year )
{
  return year % 4 == 0 && ( year % 100 != 0 || year % 400 == 0 );
}

---

I do not understand the expression. Can it be broken down to a few more lines so that newbies like me can understand? Please? :D

---

Return true if the year is evenly divisible by 4 and {the year is not evenly divisible by 100 or it is evenly divisible by 400}; otherwise return false.