wsd is an intuitive crate delivers What Simply Defined.

Intutive File Class

Just a convenient wrapper to rust File, check the return value quickly as we did with C API, don't need to check the Result, and unwrap() etc.

The available file open flags rust O_CREATE O_TRUNCATE O_RW O_READ O_WRITE O_APPEND

```rust using wsd::fs::*;

fn test() -> i32 { let mut f = File::new(); if f.open("test.txt", OCREATE | ORW) != 0 { // check the error println!("Error: {}", f.error()); return -1; }

let data = "Hello World!";
let n = f.write(data);
if n < 0 {
    // write error
}

f.rewind();
mut buf = [0; 4096];
n = f.read(buf);
if n > 0 {
    // read success        
}

// get file length
let off = f.length();

f.close();

return 0;

}

```