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-rw-r--r--lib/mlibc/options/ansi/musl-generic-math/atanhl.c35
1 files changed, 0 insertions, 35 deletions
diff --git a/lib/mlibc/options/ansi/musl-generic-math/atanhl.c b/lib/mlibc/options/ansi/musl-generic-math/atanhl.c
deleted file mode 100644
index 87cd1cd..0000000
--- a/lib/mlibc/options/ansi/musl-generic-math/atanhl.c
+++ /dev/null
@@ -1,35 +0,0 @@
-#include "libm.h"
-
-#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
-long double atanhl(long double x)
-{
- return atanh(x);
-}
-#elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
-/* atanh(x) = log((1+x)/(1-x))/2 = log1p(2x/(1-x))/2 ~= x + x^3/3 + o(x^5) */
-long double atanhl(long double x)
-{
- union ldshape u = {x};
- unsigned e = u.i.se & 0x7fff;
- unsigned s = u.i.se >> 15;
-
- /* |x| */
- u.i.se = e;
- x = u.f;
-
- if (e < 0x3ff - 1) {
- if (e < 0x3ff - LDBL_MANT_DIG/2) {
- /* handle underflow */
- if (e == 0)
- FORCE_EVAL((float)x);
- } else {
- /* |x| < 0.5, up to 1.7ulp error */
- x = 0.5*log1pl(2*x + 2*x*x/(1-x));
- }
- } else {
- /* avoid overflow */
- x = 0.5*log1pl(2*(x/(1-x)));
- }
- return s ? -x : x;
-}
-#endif