diff options
Diffstat (limited to 'sysdeps/libm-ieee754/s_ctanh.c')
| -rw-r--r-- | sysdeps/libm-ieee754/s_ctanh.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sysdeps/libm-ieee754/s_ctanh.c b/sysdeps/libm-ieee754/s_ctanh.c index eb6ff84..d8825f3 100644 --- a/sysdeps/libm-ieee754/s_ctanh.c +++ b/sysdeps/libm-ieee754/s_ctanh.c @@ -19,6 +19,7 @@ Boston, MA 02111-1307, USA. */ #include <complex.h> +#include <fenv.h> #include <math.h> #include "math_private.h" @@ -44,6 +45,11 @@ __ctanh (__complex__ double x) { __real__ res = __nan (""); __imag__ res = __nan (""); + +#ifdef FE_INVALID + if (__isinf (__imag__ x)) + feraiseexcept (FE_INVALID); +#endif } } else |