Varibles question(Floats)

[Need4Sleep]

ive been learning sfml lately and ive come across this line of code while learning:

const float Speed = 50.f;
float Left = 0.f;
float Top  = 0.f;

What does this mean? im confused on why they add ".f" after each number. Thanks for the help!

[S G H]

The ".f" means it's a float number (a Floating Point number).
If you don't include the f, it will be treated as a double number (a Double-Precision Floating Point number), but it will be converted back to float, and you will get a warning while compiling.

[Need4Sleep]

Thank you, the tutorial makes so much more sense now!