[clang] [C23] Add INFINITY and NAN macros to <float.h> (PR #96659)

[Eli Friedman via cfe-commits]

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@@ -47,6 +47,8 @@
     (defined(__cplusplus) && __cplusplus >= 201103L) ||                        \
     (__STDC_HOSTED__ && defined(_AIX) && defined(_ALL_SOURCE))
 #    undef DECIMAL_DIG
+#    undef INFINITY
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efriedma-quic wrote:

The define guarding the undefs needs to be the same as the one for the defines, I think?

https://github.com/llvm/llvm-project/pull/96659