[libcxx-commits] [libcxx] [libcxx][test][z/OS] Fix hermite.pass.cpp for HEX float (PR #101019)

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@@ -26,7 +26,13 @@
 
 #include "type_algorithms.h"
 
-inline constexpr unsigned g_max_n = 128;
+template <class Real>
+constexpr unsigned get_maximal_order() {
+  if constexpr (std::numeric_limits<Real>::max_exponent10 < std::numeric_limits<Real>::max_exponent)
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PaulXiCao wrote:

This might not test what we actually need. 
My idea was rather along the lines of max_exponent10< 60 then return 39 else if max_exponent10 <... return 128. Hope this helps otherwise let me know and I can reformulate this. 
We should check which exponents we actually need here (e.g. the 60 and ... above).

(Sorry for the formatting. I am on my phone.)

https://github.com/llvm/llvm-project/pull/101019