Appendix C: Built-in functions

This appendix contains a glossary of Calyxium's built-in functions.

Under Construction

Built-ins Currently in Use

The following is a list of built-ins currently in use, with their functionality described.

• panic - immediately terminates the program and displays the given error message
• print - prints to the terminal
• to_float - converts integers to floats
• to_int - converts floats to integers
• to_bytes - converts strings to an array of bytes
• length - returns the size of an array or string
• input - displays the prompt and reads a line of text from standard input, returning it as a unit.
• assert - fails if the boolean expression is false
• head - returns the first element of an array
• tail - returns a new array containing all elements except the first
• reverse - returns a new array with elements in the opposite order

Built-ins Reserved for Future Use

The following built-ins do not yet have any functionality but are reserved by Calyxium for potential future use.

• map - applies a function to each element of an array, returning a new array with the results
• filter - returns a new array containing only the elements for which the function returns true
• fold - reduces an array to a single value by applying a function cumulatively