[llvm] [OpenMP] Port the OpenMP device runtime to direct C++ compilation (PR #123673)

[Joseph Huber via llvm-commits]

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@@ -21,8 +21,6 @@
 
 using namespace ompx;
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jhuber6 wrote:

I could put it in another namespace.

https://github.com/llvm/llvm-project/pull/123673