uuid

Universally Unique Lexicographically Sortable Identifiers (ULIDs)

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In my previous post, I talked about time-based universally unique identifiers – UUID v7 for short. An alternative to UUIDs (especially to version 4) is the ULID, which stands for Universally unique Lexicographically sortable IDentifier. These are similar with UUIDs, they have the same 128 bit length, but offer several advantages. Let’s see what these … Read more

Time-based Universally Unique Identifiers (UUIDs v7)

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Universally Unique Identifiers (UUID for short) are 128-bit numbers with a high degree of unicity so that the possibility of collision is extremely low. They are used for various purposes such as identifying resources, correlation IDs in logging and tracing, primary keys in databases, and more. UUIDs are known as GUIDs (Globally Unique Identifiers) on … Read more

stduuid – A C++ library for universally unique identifiers

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I have recently submitted a proposal for a new standard library for universally unique identifiers. The library is called uuid and the paper, P0959R0 – A Proposal for a Universally Unique Identifier Library, is available on Github. The design of the library is inspired by the Boost Uuid Library and the Crossuuid library. I got lots of great feedback that shaped the formed of the proposal from people on the ISO C++ Standard – Future Proposals forum.

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