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Integer/Number and uint(8,16,32,64bit) fun... ;)

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Johannes Findeisen 2025-09-16 12:29:28 +02:00
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examples/types_integers.fun Executable file
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#!/usr/bin/env fun
/*
* This file is part of the Fun programming language.
* https://hanez.org/project/fun/
*
* Copyright 2025 Johannes Findeisen <you@hanez.org>
* Licensed under the terms of the ISC license.
* https://opensource.org/license/isc-license-txt
*/
// Integer (number) and boolean usage examples
// Basic typed integers
number a = 42
number b = -7
number zero = 0
print("a = " + to_string(a) + " :: " + typeof(a)) // "Number"
print("b = " + to_string(b) + " :: " + typeof(b)) // "Number"
print("zero = " + to_string(zero) + " :: " + typeof(zero))
// Arithmetic with integers
number sum = a + b
number diff = a - b
number prod = a * 3
number quot = a / 2
number rem = a % 5
print("sum (a + b) = " + to_string(sum))
print("diff (a - b) = " + to_string(diff))
print("prod (a * 3) = " + to_string(prod))
print("quot (a / 2) = " + to_string(quot))
print("rem (a % 5) = " + to_string(rem))
// Comparisons (results are numbers 1/0 in Fun)
print("a > b = " + to_string(a > b))
print("a >= b = " + to_string(a >= b))
print("a < b = " + to_string(a < b))
print("a <= b = " + to_string(a <= b))
print("a == b = " + to_string(a == b))
print("a != b = " + to_string(a != b))
// Booleans are numeric 1/0; typeof returns "Number"
boolean t = true
boolean f = false
print("t = " + to_string(t) + " :: " + typeof(t))
print("f = " + to_string(f) + " :: " + typeof(f))
// Short-circuit logic with numeric truthiness
print("t && (a > 0) = " + to_string(t && (a > 0)))
print("f || (a < 0) = " + to_string(f || (a < 0)))
// Using integers in a for-range loop: sum 1..5
fun sum_range(lo, hi)
number acc = 0
for i in range(lo, hi + 1)
acc = acc + i
return acc
print("sum 1..5 = " + to_string(sum_range(1, 5)))
// Arrays of integers
nums = [1, 2, 3, 4, 5]
print("nums length = " + to_string(len(nums)))
print("nums[2] = " + to_string(nums[2]))
// Map with numeric fields
pt = { "x": 10, "y": -3 }
print("pt['x'] = " + to_string(pt["x"]) + " :: " + typeof(pt["x"]))
print("pt['y'] = " + to_string(pt["y"]) + " :: " + typeof(pt["y"]))
// Conversions
print("to_string(123) => " + to_string(123))
print("to_number(\"456\") => " + to_string(to_number("456")))