# Proposal: \`iota\`, an Auto-Incrementing Counter for \`comptime\` Struct Members

**URL:** <https://forum.modular.com/t/proposal-iota-an-auto-incrementing-counter-for-comptime-struct-members/3528>\
**Category:** Language Design\
**Created:** [September 26, 2026, 7:59am UTC](https://forum.modular.com/t/proposal-iota-an-auto-incrementing-counter-for-comptime-struct-members/3528 "2026-09-26T07:59:21Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![melodyogonna](https://sea1.discourse-cdn.com/flex001/user_avatar/forum.modular.com/melodyogonna/32/33_2.png) [@melodyogonna](https://forum.modular.com/u/melodyogonna)\
**Post date:** [September 26, 2026, 9:45am UTC](https://forum.modular.com/t/proposal-iota-an-auto-incrementing-counter-for-comptime-struct-members/3528/2 "2026-09-26T09:45:04Z")

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Enum is being worked on: [Pattern matching + Enum proposals](https://forum.modular.com/t/pattern-matching-enum-proposals/3473/)

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_[View the full topic](https://forum.modular.com/t/proposal-iota-an-auto-incrementing-counter-for-comptime-struct-members/3528)._