[libc-commits] [libc] [libc][math][c++23] Add bfloat16 support in LLVM libc (PR #144463)

[via libc-commits]

================
@@ -571,6 +572,10 @@ template <> float128 MPFRNumber::as<float128>() const {
   return mpfr_get_float128(value, mpfr_rounding);
 }
 
+template <> bfloat16 MPFRNumber::as<bfloat16>() const {
+  return fputil::cast<bfloat16>(mpfr_get_flt(value, mpfr_rounding));
+}
+
 #endif // LIBC_TYPES_FLOAT128_IS_NOT_LONG_DOUBLE
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overmighty wrote:

Took me too long to realize this:

```suggestion
#endif // LIBC_TYPES_FLOAT128_IS_NOT_LONG_DOUBLE

template <> bfloat16 MPFRNumber::as<bfloat16>() const {
  return fputil::cast<bfloat16>(mpfr_get_flt(value, mpfr_rounding));
}
```

https://github.com/llvm/llvm-project/pull/144463