cpu-endian

cpu-endian is a portable crate to detect CPU byte order.

Feature

• Enable to detect scalar is ordered in little-endian, big-endian, and the other minor endians (like PDP-endian, mixed-endian, middle-endian, and so on.)
• Checks dynamically when first asked and cache the result. Some CPUs switch the endian, however, it will never be changed while the process is running.

Examples

``` use cpu_endian::{Endian, working};

// Takes first octet of 0x00ff: u16. let v: u16 = 0x00ff; let first_octet: u8 = unsafe { let ptr = &v as *const u16; let ptr = ptr as *const u8; *ptr };

// If the byte-order is little-endian, the first octet should be 0xff, or if big-endian, // it should be 0x00. match working() { Endian::Little => asserteq!(0xff, firstoctet), Endian::Big => asserteq!(0x00, firstoctet), _ => {}, } ```

Requirements

This crate requires C++ compiler supporting c++20.