[Cfp-interest 3114] Two math functions

[Fred J. Tydeman]

C++ has these two math functions and is asking if they should be added to C:

https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2019/p0811r3.html?

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Fred J. Tydeman        Tydeman Consulting
tydeman at tybor.com      Testing, numerics, programming
+1 (702) 608-6093      Vice-chair of INCITS/C (ANSI "C")
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