Why does 7/2 = 3? (C++)

[Goldom]

"cout<<7/2;" gives 3. Not 3.5. It's been far too long since I've done this, what am I forgetting? Tried having it go into a double too, it still said just the 3.

[Q3JR4]

1. Um....

I may be at a loss, but do you have to tell it that it's dealing with a real number and not an integer?

If this doesn't help, please forget I said anything. :)

[Kellanved]

2. because it uses the int "/" operator

Try replacing "7" with "7.0".

[trogdor]

3. Because you are dividing two ints.

The result must be an int, so it truncates the remainder. Now, if you want the remainder, 7 % 2 = 1.

If you were dividing two floats, you would get a float back. cout << 7/2 assumes 7 and 2 are integers. Casting an int as a double doesn't do any good, either.

Try cout << (float)7/(float)2. Better yet:

float a(7);
float b(2);
cout << a/b;

[Goldom]

4. got it.

had to put a .0 after the number it was dividing for some reason.

[Commie Pinko Dirtbag]

5. Wait till you get to the STL.

:evilgrin:

[Endangered Specie]

6. If youre doing it in C++

You need to write 7.0/2.0 = double;... or you could assign double x=7.0; and double y = 2.0; and then do x/y;