In the following code, the const are defined using two different ways.
const float KS = 0.001F;
const float WW = 0.001f;
Is there any difference between F and f?
Revision 1: If both are same then why both cases are allowed ?
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108answers:
2
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A:
Nope, no difference between f and F in this case. It's the special suffix for float literals, either works fine.
With the long literals, there's stylistic difference: l (lowercase) looks a lot like 1 (the number one). It's recommended to use capital L for long literals.
References
MSDN/C# Programmer's Reference/float
By default, a real numeric literal on the right-hand side of the assignment operator is treated as
double. Therefore, to initialize a float variable use the suffixforF.MSDN/C# Programmer's Reference/long
You can also use the lowercase letter
"l"as a suffix. However, this generates a compiler warning because the letter"l"is easily confused with the digit"1". Use"L"for clarity.
polygenelubricants
2010-05-30 12:39:39
If both are same then why both cases are allowed ?
Ram
2010-05-30 13:32:51
@Ram: Why not???
polygenelubricants
2010-05-30 13:51:16
It may create confusion. As string and String are also same. I was just wondering why both are allowed. Microsoft can restrict developer to use only a single one.
Ram
2010-05-30 13:53:35
A:
Yes, the case :) Functionality wise, no. Its the same as String and string.
James
2010-05-30 13:04:31
It is just an alias. I tend to use it to differ between referring to an object or the type itself i.e if I am using a static method of string I would always do `String.IsNullOrEmpty` never `string.IsNullOrEmpty` purely my own style as I think it looks neater. On the other hand I don't tend to do `String str = "test"` I always do `string str = "test"`. It may also be for people porting from Java as the case was always `String`.
James
2010-05-30 14:42:22