[libcxx-commits] [libcxx] [libc++] Use libm implementations in exp for complex numbers (PR #165457)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions ,cpp -- libcxx/test/libcxx/numerics/complex.number/exp.pass.cpp libcxx/include/complex --diff_from_common_commit
``````````

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``````````diff
diff --git a/libcxx/include/complex b/libcxx/include/complex
index 21518b0e5..b04ea46b1 100644
--- a/libcxx/include/complex
+++ b/libcxx/include/complex
@@ -1074,7 +1074,7 @@ _LIBCPP_HIDE_FROM_ABI complex<_Tp> sqrt(const complex<_Tp>& __x) {
 
 // exp
 
-#if _LIBCPP_HAS_C99_COMPLEX
+#  if _LIBCPP_HAS_C99_COMPLEX
 _LIBCPP_HIDE_FROM_ABI inline _Complex float __cexp(_Complex float __v) { return __builtin_cexpf(__v); }
 _LIBCPP_HIDE_FROM_ABI inline _Complex double __cexp(_Complex double __v) { return __builtin_cexp(__v); }
 _LIBCPP_HIDE_FROM_ABI inline _Complex long double __cexp(_Complex long double __v) { return __builtin_cexpl(__v); }
@@ -1083,7 +1083,7 @@ template <class _Tp>
 _LIBCPP_HIDE_FROM_ABI complex<_Tp> exp(const complex<_Tp>& __x) {
   return complex<_Tp>(__from_builtin_tag(), std::__cexp(__x.__builtin()));
 }
-#else
+#  else
 template <class _Tp>
 _LIBCPP_HIDE_FROM_ABI complex<_Tp> exp(const complex<_Tp>& __x) {
   _Tp __i = __x.imag();
@@ -1107,7 +1107,7 @@ _LIBCPP_HIDE_FROM_ABI complex<_Tp> exp(const complex<_Tp>& __x) {
   _Tp __e = std::exp(__x.real());
   return complex<_Tp>(__e * std::cos(__i), __e * std::sin(__i));
 }
-#endif
+#  endif
 
 // pow
 

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https://github.com/llvm/llvm-project/pull/165457