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# Number palindromes

A palindrome is a number that is the same when the digits are reversed. For example, 121, 2332, and 6 are all palindromes. But 10 is not a palindrome (since leading zeroes are not allowed). 0 is treated as a palindrome.

To check if a number is a palindrome, use **is_palindrome** function, e.g.:

` ``let` x `=` `123``;` `//` no, this is not a palindrome
`let` is_palindrome `=` `palindronum``::`is_palindrome`(`x`)``;`
`println!``(``"``{x}` is a palindrome: `{is_palindrome}``"``)``;`

output:

` 123 is a palindrome: false
`

` ``let` x `=` `121``;` `//` yes, this is a palindrome
`let` is_palindrome `=` `palindronum``::`is_palindrome`(`x`)``;`
`println!``(``"``{x}` is a palindrome: `{is_palindrome}``"``)``;`

output:

` 121 is a palindrome: true
`

To generate first *n* palindromes, use **first_n_palindromes** function, e.g.:

`let` first_10_palindromes `=` `palindronum``::`first_n_palindromes`(``10``)``;`
`for` x `in` first_10_palindromes `{`
`println!``(``"``{x:2}` is a palindrome`"``)``;`
`}`

output:

` 1 is a palindrome
2 is a palindrome
3 is a palindrome
4 is a palindrome
5 is a palindrome
6 is a palindrome
7 is a palindrome
8 is a palindrome
9 is a palindrome
11 is a palindrome
`

## License

Licensed under either of

- MIT license (see LICENSE-MIT) or
- Apache License, Version 2.0 (see LICENSE and NOTICE)

at your option.

## Contribution

Any contributions to palindronum are greatly appreciated. All contributions intentionally submitted for inclusion in the work by you, shall be dual licensed as above, without any additional terms or conditions.