C Language Literals for numbers, characters and strings Floating point literals
Example
Floating point literals are used to represent signed real numbers. The following suffixes can be used to specify type of a literal:
| Suffix | Type | Examples |
|---|---|---|
| none | double | 3.1415926 -3E6 |
f, F | float | 3.1415926f 2.1E-6F |
l, L | long double | 3.1415926L 1E126L |
In order to use these suffixes, the literal must be a floating point literal. For example, 3f is an error, since 3 is an integer literal, while 3.f or 3.0f are correct. For long double, the recommendation is to always use capital L for the sake of readability.
