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Editorial Team
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Asked: 2026-05-15T03:50:07+00:00

In the following code, the const are defined using two different ways. const float

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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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1 Answer

  1. Editorial Team

    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 suffix f or F.

    • 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.

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