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Add mangling for pack indexing types and expressions (C++26) #198

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Add mangling for pack indexing types and expressions (C++26) #198

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This proposes

<type> ::= Dy <type> <index expression>                   # pack indexing type
<expression> ::= sy <template-param> <index expression>   # pack indexing expression
<expression> ::= sy <function-param> <index expression>   # pack indexing expression

And roughly mirrors sizeof....
The case of a partially substituted pack of type is not handled.

@cor3ntin
Add mangling for pack indexing types and expressions (C++26)
320b2cb 
This proposes
```
<type> ::= Dy <type> <index expression>                   # pack indexing type
<expression> ::= sy <template-param> <index expression>   # pack indexing expression
<expression> ::= sy <function-param> <index expression>   # pack indexing expression
```

And roughly mirrors `sizeof...`.
The case of a partially substituted pack of type is not handled.
@cor3ntin cor3ntin mentioned this pull request Jan 26, 2025
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Related issue #175

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@samikssi samikssi samikssi approved these changes

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