A floating-point constant consists of:

• Decimal integer
• Decimal point
• Decimal fraction
• e or E and a signed integer exponent (optional)
• Type suffix: f or F or l or L (optional)

Either decimal integer or decimal fraction (but not both) can be omitted. Either decimal point or letter e (or E) with a signed integer exponent (but not both) can be omitted. These rules allow conventional and scientific (exponent) notations.

Negative floating constants are taken as positive constants with an unary operator minus (-) prefixed.

The mikroC PRO for PIC limits floating-point constants to the range ±1.17549435082 * 10^-38 .. ±6.80564774407 * 10³⁸.

Here are some examples:

0.       // = 0.0
-1.23    // = -1.23
23.45e6  // = 23.45 * 10^6
2e-5     // = 2.0 * 10^-5
3E+10    // = 3.0 * 10^10
.09E34   // = 0.09 * 10^34

The mikroC PRO for PIC floating-point constants are of the type double. Note that the mikroC PRO for PIC’s implementation of ANSI Standard considers float and double (together with the long double variant) to be the same type.

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