Little Endian Vs Big Endian

CPU like Intel, AMD, Apple Silicon, they store number in little-endian.

For example, the word example, have the following hex byte

00000000 65 78 61 6D:70 6C 65 example

This would store differently in little-endian since it store the small part of the number first

Memory Address	Big-Endian (Motorola, PowerPC, Network)	Little-Endian (Intel, AMD, Apple M1/M2)
`00`	`65` ('e')	`65` ('e')
`01`	`78` ('x')	`6c` ('l')
`02`	`61` ('a')	`70` ('p')
`03`	`6d` ('m')	`6d` ('m')
`04`	`70` ('p')	`61` ('a')
`05`	`6c` ('l')	`78` ('x')
`06`	`65` ('e')	`65` ('e')

#include <iostream>

int main() {
    unsigned long hexNumber = 0x6578616d706c65;
    char* toChar = (char*) &hexNumber;
    std::cout << toChar << std::endl;
}

elpmaxe

[!note]
We need to use &hexNumber here since 0x6578616d706c65 if we just do (char*) hexNumber that would tell the computer to look at the memory address of a very big number, that would generate a core dump.
In here we need to use the memory address of hexNumber and cast that to a string.