[Openmp-commits] [openmp] [libomp] Add kmp_str_ref (ADT 1/2) (PR #176162)

[Michael Kruse via Openmp-commits]

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Meinersbur wrote:

```suggestion
#ifndef KMP_ADT_H
#define KMP_ADT_H
```
Other headers don't use double underscores (leading double-underscores are reserved for the compiler itself)

https://github.com/llvm/llvm-project/pull/176162