Sqids (pronounced "squids") is an open-source library that lets you generate short unique identifiers from numbers. These IDs are URL-safe, can encode several numbers, and do not contain common profanity words. Read more .
This is what they look like:
Quick encode & decode example:
sqidscxx::Sqids sqids;
auto id = sqids.encode({ 1, 2, 3 }); // "86Rf07"
auto numbers = sqids.decode(id); // { 1, 2, 3 }
If IDs are too short, you can pad them to a certain length:
sqidscxx::Sqids sqids({ minLength: 10 });
auto id = sqids.encode({ 1, 2, 3 }); // "86Rf07xd4z"
auto numbers = sqids.decode(id); // { 1, 2, 3 }
Create unique IDs by shuffling the alphabet:
sqidscxx::Sqids sqids({ alphabet: "k3G7QAe51FCsPW92uEOyq4Bg6Sp8YzVTmnU0liwDdHXLajZrfxNhobJIRcMvKt" });
auto id = sqids.encode({ 1, 2, 3 }); // "XRKUdQ"
auto numbers = sqids.decode(id); // { 1, 2, 3 }
Full documentation is at https://github.com/sqids/sqids-cpp
If you're looking for the original Hashids C++11, you can find it here: https://github.com/schoentoon/hashidsxx
The main use of Sqids is purely visual. If you'd like to use IDs instead of numbers in your project, Sqids could be a good choice.