Added some more HEX (hex_to_dec()) Fun. (0.3714)

examples/hex_example.fun

@@ -0,0 +1,62 @@
+#!/usr/bin/env fun
+
+/*
+ * This file is part of the Fun programming language.
+ * https://fun-lang.xyz/
+ *
+ * Copyright 2025 Johannes Findeisen <you@hanez.org>
+ * Licensed under the terms of the Apache-2.0 license.
+ * https://opensource.org/license/apache-2-0
+ *
+ * Added: 2025-12-18
+ */
+
+/*
+ * Example: Using hex utility functions with fixed values
+ * This demonstrates hex_to_bytes, bytes_to_hex, and hex_to_dec.
+ */
+
+#include <hex.fun>
+
+print("--- Hex utility demo (fixed values) ---")
+
+// Using a fixed hex string for verification
+hexstr = "50a76f143d67ce173962cd2eea5a86a4"
+print("Fixed Hex string:")
+print(hexstr)
+
+print("Hex length (should be 32):")
+print(to_string(len(hexstr)))
+
+print("Hex bytes array:")
+bytes = hex_to_bytes(hexstr)
+print(to_string(bytes))
+
+echo("Hex dump to bytes:")
+print(bytes)
+
+print("Back to hex from bytes:")
+print(bytes_to_hex(bytes))
+
+print("Hex as decimal (first 4 bytes - 0x50a76f14):")
+print(to_string(hex_to_dec(substr(hexstr, 0, 8))))
+
+print("Hex as decimal (all bytes):")
+print(to_string(hex_to_dec(hexstr)))
+
+/* Expected output:
+--- Hex utility demo (fixed values) ---
+Fixed Hex string:
+50a76f143d67ce173962cd2eea5a86a4
+Hex length (should be 32):
+32
+Hex bytes array:
+[array n=16]
+Hex dump to bytes:[80, 167, 111, 20, 61, 103, 206, 23, 57, 98, 205, 46, 234, 90, 134, 164]
+Back to hex from bytes:
+50a76f143d67ce173962cd2eea5a86a4
+Hex as decimal (first 4 bytes - 0x50a76f14):
+1353150228
+Hex as decimal (all bytes):
+4135093009263527588
+*/