diff options
| -rw-r--r-- | ChangeLog | 4 | ||||
| -rw-r--r-- | sysdeps/ieee754/ldbl-128ibm/s_tanhl.c | 2 |
2 files changed, 5 insertions, 1 deletions
@@ -1,5 +1,9 @@ 2015-12-09 Joseph Myers <joseph@codesourcery.com> + [BZ #19349] + * sysdeps/ieee754/ldbl-128ibm/s_tanhl.c (__tanhl): Return argument + when small. + * sysdeps/unix/sysv/linux/i386/kernel-features.h [__LINUX_KERNEL_VERSION >= 0x040300] (__ASSUME_SOCKET_SYSCALL): New macro. diff --git a/sysdeps/ieee754/ldbl-128ibm/s_tanhl.c b/sysdeps/ieee754/ldbl-128ibm/s_tanhl.c index 292020c..e6457a1 100644 --- a/sysdeps/ieee754/ldbl-128ibm/s_tanhl.c +++ b/sysdeps/ieee754/ldbl-128ibm/s_tanhl.c @@ -69,7 +69,7 @@ long double __tanhl(long double x) if (ix<0x3c60000000000000LL) /* |x|<2**-57 */ { math_check_force_underflow (x); - return x*(one+x); /* tanh(small) = small */ + return x; /* tanh(small) = small */ } if (ix>=0x3ff0000000000000LL) { /* |x|>=1 */ t = __expm1l(two*fabsl(x)); |