diff options
Diffstat (limited to 'sysdeps/ieee754/ldbl-128ibm/s_tanl.c')
| -rw-r--r-- | sysdeps/ieee754/ldbl-128ibm/s_tanl.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/sysdeps/ieee754/ldbl-128ibm/s_tanl.c b/sysdeps/ieee754/ldbl-128ibm/s_tanl.c index ea5a7f0ffb..913f38f243 100644 --- a/sysdeps/ieee754/ldbl-128ibm/s_tanl.c +++ b/sysdeps/ieee754/ldbl-128ibm/s_tanl.c @@ -44,6 +44,7 @@ * TRIG(x) returns trig(x) nearly rounded */ +#include <errno.h> #include "math.h" #include "math_private.h" #include <math_ldbl_opt.h> @@ -66,8 +67,11 @@ if(ix <= 0x3fe921fb54442d10LL) return __kernel_tanl(x,z,1); /* tanl(Inf or NaN) is NaN */ - else if (ix>=0x7ff0000000000000LL) return x-x; /* NaN */ - + else if (ix>=0x7ff0000000000000LL) { + if (ix == 0x7ff0000000000000LL) + __set_errno (EDOM); + return x-x; /* NaN */ + } /* argument reduction needed */ else { n = __ieee754_rem_pio2l(x,y); |