Tutorial/Numbers
Neko Numbers
Numbers in Neko may be integers (whole numbers) or floats. Integers are 31-bits, so they have a range from -1073741824 to 1073741823. Floats are stored as 64-bit doubles. There is also a library provided for manipulating 32-bit integers here.
Number Operations
The following operations can be performed with any two numbers:
-- Subtraction+- Addition/- Division*- Multiplication%- Modulo
Note that division of two integers may return a float.
Integer Operations
The following operations can only be used with integers:
<<- Left bit shift>>- Right bit shift>>>- Right unsigned bit shift|- Perform bitwise or&- Perform bitwise and^- Perform bitwise xor
Integer Functions
The following functions can be used with integers and are more efficient than the operators above:
$iadd- Add two integers$isub- Subtract two integers$idiv- Divides two integers using integer divison. Raises error for division by zero$imult- Multiplies two integers
Number Conversions
$int- Converts any value to an integer ornullif it cannot$float- Converts any value to a float ornullif it cannot
Number Checks
$isnan- Returns true if the value given is the float value of NaN$isinfinite- Returns true if the value given is the float value of infinity
Integer Overflow
Neko does not deal with integer overflow. Positive overflow will result in the value of -1, negative overflow results in 1. Keep in mind the range for integers given above.
