fn main() {
println!("Memory-Mapped Array Example");
println!("=========================");
println!("Skipping mmap examples due to permission issues.");
println!("To run these examples, ensure write permissions in the current directory.");
println!("\nMemory-Mapped Array Features:");
println!("1. Efficient storage of large arrays");
println!("2. Data persists between program runs");
println!("3. Only loads data that is accessed, saving memory");
println!("4. Automatic paging by the OS");
println!("5. Can be shared between processes");
println!("\nUsage example:");
println!("```rust");
println!("use numrs2::prelude::*;");
println!("use std::path::Path;");
println!();
println!("// Create a data array");
println!("let data = Array::from_vec(vec![1.0, 2.0, 3.0, 4.0, 5.0]);");
println!();
println!("// Save it as a memory-mapped file");
println!("let path = Path::new(\"my_array.bin\");");
println!("let mmap = MmapArray::from_array(&data, &path).unwrap();");
println!();
println!("// Access data");
println!("let value = mmap.get(&[2]).unwrap(); // Gets the third element");
println!();
println!("// Convert back to regular array if needed");
println!("let array = mmap.to_array().unwrap();");
println!("```");
}