[libc-commits] [libc] [llvm] [libc][math] Implement double-precision acosh (PR #199953)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions h,cpp -- libc/shared/math/acosh.h libc/src/__support/math/acosh.h libc/src/math/generic/acosh.cpp libc/test/src/math/acosh_test.cpp libc/test/src/math/smoke/acosh_test.cpp libc/shared/math.h libc/test/shared/shared_math_test.cpp --diff_from_common_commit
``````````

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View the diff from clang-format here.
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``````````diff
diff --git a/libc/src/__support/math/acosh.h b/libc/src/__support/math/acosh.h
index 4884a1ff8..bf7bbabd1 100644
--- a/libc/src/__support/math/acosh.h
+++ b/libc/src/__support/math/acosh.h
@@ -58,7 +58,7 @@ LIBC_INLINE double acosh_log1p_dd(double u_hi, double u_lo) {
           : 0;
 
   DoubleDouble m_dd{FPBits_t(m_lo_bits).get_val(),
-                   FPBits_t(m_hi_bits).get_val()};
+                    FPBits_t(m_hi_bits).get_val()};
 
   double r = R1[idx];
   DoubleDouble v_lo_p = fputil::exact_mult(m_dd.lo, r);

``````````

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https://github.com/llvm/llvm-project/pull/199953