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-rw-r--r--sysdeps/libm-ieee754/s_ctanhl.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/sysdeps/libm-ieee754/s_ctanhl.c b/sysdeps/libm-ieee754/s_ctanhl.c
index b34aeb77dd..5c466167a6 100644
--- a/sysdeps/libm-ieee754/s_ctanhl.c
+++ b/sysdeps/libm-ieee754/s_ctanhl.c
@@ -48,11 +48,15 @@ __ctanhl (__complex__ long double x)
}
else
{
- long double den = (__ieee754_coshl (2.0 * __real__ x)
- + __cosl (2.0 * __imag__ x));
+ long double sin2ix, cos2ix;
+ long double den;
+
+ __sincosl (2.0 * __imag__ x, &sin2ix, &cos2ix);
+
+ den = (__ieee754_coshl (2.0 * __real__ x) + cos2ix);
__real__ res = __ieee754_sinhl (2.0 * __real__ x) / den;
- __imag__ res = __sinl (2.0 * __imag__ x) / den;
+ __imag__ res = sin2ix / den;
}
return res;