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Diffstat (limited to 'sysdeps/libm-ieee754/s_ctanhf.c')
-rw-r--r--sysdeps/libm-ieee754/s_ctanhf.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/sysdeps/libm-ieee754/s_ctanhf.c b/sysdeps/libm-ieee754/s_ctanhf.c
index 1bdbc0fdc5..45548d518c 100644
--- a/sysdeps/libm-ieee754/s_ctanhf.c
+++ b/sysdeps/libm-ieee754/s_ctanhf.c
@@ -48,11 +48,15 @@ __ctanhf (__complex__ float x)
}
else
{
- float den = (__ieee754_coshf (2.0 * __real__ x)
- + __cosf (2.0 * __imag__ x));
+ float sin2ix, cos2ix;
+ float den;
+
+ __sincosf (2.0 * __imag__ x, &sin2ix, &cos2ix);
+
+ den = (__ieee754_coshf (2.0 * __real__ x) + cos2ix);
__real__ res = __ieee754_sinhf (2.0 * __real__ x) / den;
- __imag__ res = __sinf (2.0 * __imag__ x) / den;
+ __imag__ res = sin2ix / den;
}
return res;