diff options
Diffstat (limited to 'math/s_cacosh_template.c')
| -rw-r--r-- | math/s_cacosh_template.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/math/s_cacosh_template.c b/math/s_cacosh_template.c index 14f0b2a4e6..0014fd444c 100644 --- a/math/s_cacosh_template.c +++ b/math/s_cacosh_template.c @@ -57,7 +57,10 @@ M_DECL_FUNC (__cacosh) (CFLOAT x) else { __real__ res = M_NAN; - __imag__ res = M_NAN; + if (rcls == FP_ZERO) + __imag__ res = M_MLIT (M_PI_2); + else + __imag__ res = M_NAN; } } else if (rcls == FP_ZERO && icls == FP_ZERO) |