C++ casting

[goncalves]

Hello people.
I know C++ treats something like int(5)/int(10)=0
To see the result 0.5 it's necessary do use static_cast<type>, is that right?
How can I use this, it's necessary to add any library?
I'll use this with arrays, the mechanism is the same?

thanks

[Daleth]

To do floating point division with integer parameters, you can do a simple C-style cast like this:

result = float(5)/10;
//or
result = double(5)/10;

which will give you 0.5. static_cast<> is the C++ version with minute differences, but in your case it hardly makes a difference.

result = float(5)/10;
//Is equivalent to
result = static_cast<float>(5)/10;

There is no need for any library to use static casts.

And yes, the same can be done with arrays. However, you should attempt to avoid any casts unless casting is really, really, really necessary and may be the only solution.

[cire]

In the case of literals, it's easier just to make the literal the correct type:

float result = 5.0f / 10 ;

// or 

double result = 5.0 / 10 ;

[goncalves]

Thank you to the answers, helped a lot!
:)