[libc] [llvm] [APFloat] Add exp function for APFloat::IEEESsingle using expf implementation from LLVM libc. (PR #143959)

[Alexey Samsonov via llvm-commits]

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@@ -1524,6 +1524,10 @@ class APFloat : public APFloatBase {
   friend APFloat frexp(const APFloat &X, int &Exp, roundingMode RM);
   friend IEEEFloat;
   friend DoubleAPFloat;
+
+#ifdef LLVM_INTEGRATE_LIBC
+  friend APFloat exp(const APFloat &X, roundingMode RM);
+#endif // LLVM_INTEGRATE_LIBC)
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vonosmas wrote:

Nit: remove trailing )

https://github.com/llvm/llvm-project/pull/143959