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[PR #6925] Replace gsl::at with a new til::at(span) for pre-checked bounds #26822

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opened 2026-01-31 09:18:20 +00:00 by claunia · 0 comments
claunia commented 2026-01-31 09:18:20 +00:00
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Original Pull Request: https://github.com/microsoft/terminal/pull/6925

State: closed
Merged: Yes

The recent changes to use gsl::span everywhere added a few bounds checks
along codepaths where we were already checking bounds. Some of them may
be non-obvious to the optimizer, so we can now use til::at to help them
along.

To accomplish this, I've added a new overload of til::at that takes a
span and directly accesses its backing buffer.

**Original Pull Request:** https://github.com/microsoft/terminal/pull/6925 **State:** closed **Merged:** Yes --- The recent changes to use gsl::span everywhere added a few bounds checks along codepaths where we were already checking bounds. Some of them may be non-obvious to the optimizer, so we can now use til::at to help them along. To accomplish this, I've added a new overload of til::at that takes a span and directly accesses its backing buffer.
claunia added the pull-request label 2026-01-31 09:18:20 +00:00
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Reference: starred/terminal#26822
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