[libc-commits] [libc] [libc] Implement roundeven C23 math functions (PR #87678)

[via libc-commits]

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@@ -351,6 +351,12 @@ class MPFRNumber {
     return result;
   }
 
+  MPFRNumber roundeven() const {
+    MPFRNumber result(*this);
+    mpfr_roundeven(result.value, value);
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lntue wrote:

Can you add the version guard, and implement a replacement for `mpfr_roundeven` when it's not available, similar to https://github.com/llvm/llvm-project/blob/843cc474faefad1d639f4c44c1cf3ad7dbda76c8/libc/utils/MPFRWrapper/MPFRUtils.cpp#L244

https://github.com/llvm/llvm-project/pull/87678