diff options
Diffstat (limited to 'sysdeps/ieee754/ldbl-96/e_sinhl.c')
| -rw-r--r-- | sysdeps/ieee754/ldbl-96/e_sinhl.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/sysdeps/ieee754/ldbl-96/e_sinhl.c b/sysdeps/ieee754/ldbl-96/e_sinhl.c index 4978f348bb..de6dff6843 100644 --- a/sysdeps/ieee754/ldbl-96/e_sinhl.c +++ b/sysdeps/ieee754/ldbl-96/e_sinhl.c @@ -36,6 +36,7 @@ static char rcsid[] = "$NetBSD: $"; * only sinhl(0)=0 is exact for finite x. */ +#include <float.h> #include <math.h> #include <math_private.h> @@ -58,8 +59,14 @@ __ieee754_sinhl(long double x) if (jx & 0x8000) h = -h; /* |x| in [0,25], return sign(x)*0.5*(E+E/(E+1))) */ if (ix < 0x4003 || (ix == 0x4003 && i0 <= 0xc8000000)) { /* |x|<25 */ - if (ix<0x3fdf) /* |x|<2**-32 */ + if (ix<0x3fdf) { /* |x|<2**-32 */ + if (fabsl (x) < LDBL_MIN) + { + long double force_underflow = x * x; + math_force_eval (force_underflow); + } if(shuge+x>one) return x;/* sinh(tiny) = tiny with inexact */ + } t = __expm1l(fabsl(x)); if(ix<0x3fff) return h*(2.0*t-t*t/(t+one)); return h*(t+t/(t+one)); |