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Closes #1907

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Herb Sutter
2022-09-29 14:28:23 -07:00
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CppCoreGuidelines.md
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@@ -13636,7 +13636,7 @@ To avoid the pitfalls with `auto` and `int`.
##### Note
The built-in array uses signed subscripts.
The built-in array allows signed subscripts.
The standard-library containers use unsigned subscripts.
Thus, no perfect and fully compatible solution is possible (unless and until the standard-library containers change to use signed subscripts someday in the future).
Given the known problems with unsigned and signed/unsigned mixtures, better stick to (signed) integers of a sufficient size, which is guaranteed by `gsl::index`.