trivial_example/
trivial_example.rs

1// Copyright (c) 2026 CyberNestSticks LLC
2// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
3// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
4// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
5// option. This file may not be copied, modified, or distributed
6// except according to those terms.
7
8// Author: Lawrence (Larry) Foard
9
10use arcstr::literal;
11use zcstring::ZCString;
12
13fn main() {
14    // ZCString creation examples
15    println!("From str: {:?}", ZCString::from("str"));
16    #[cfg(feature = "std")]
17    println!("From String: {:?}", ZCString::from(String::from("str")));
18    #[cfg(feature = "std")]
19    println!("String::from(\"a\") == ZCString::from(\"a\"): {:?}", 
20        String::from("a") == ZCString::from("a"));
21    println!("New ZCString: {:?}", ZCString::new());
22
23    // how big is a ZCString member in a structure as compared &str?
24
25    // we expect the same size. Why? &str is a fat pointer and
26    // ZString is a Substr which is a thin pointer to an ArcStr plus
27    // a range consisting of two u32s
28    println!("size_of &str: {}", size_of::<&str>());
29    println!("size_of ZCString: {}", size_of::<ZCString>());
30
31    // create a ZCString pointing to a staticly defined &str
32    let zc = ZCString::from(literal!("cats and dogs"));
33
34    // lets make some substrings
35    let s1 = zc.substr(0..4);
36    let s2 = zc.substr(9..12);
37
38    // show the strings and the fact they live in zc
39    println!("s1: {:?} lives in zc? {}", s1, zc.source_of(&s1));
40    println!("s2: {:?} lives in zc? {}", s2, zc.source_of(&s2));
41}
trivial_example/trivial_example.rs

trivial_example/
trivial_example.rs
