[libc-commits] [libc] [llvm] [libc][math][c23] Add cosbf16 math function (PR #185801)

[Muhammad Bassiouni via libc-commits]

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bassiounix wrote:

```txt
external/+_repo_rules+llvm-project/libc/src/math/generic/cosbf16.cpp:10:10: error: module +_repo_rules+llvm-project//libc:cosbf16 does not depend on a module exporting 'src/__support/FPUtil/bfloat16.h'
   10 | #include "src/__support/FPUtil/bfloat16.h"
      |          ^
```

https://github.com/llvm/llvm-project/pull/185801