diff options
Diffstat (limited to 'libquadmath/math/tanhq.c')
| -rw-r--r-- | libquadmath/math/tanhq.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/libquadmath/math/tanhq.c b/libquadmath/math/tanhq.c index 4ef4fd02143..6b60dbf1b2f 100644 --- a/libquadmath/math/tanhq.c +++ b/libquadmath/math/tanhq.c @@ -72,7 +72,10 @@ tanhq (__float128 x) if (u.value == 0) return x; /* x == +- 0 */ if (ix < 0x3fc60000) /* |x| < 2^-57 */ - return x * (one + tiny); /* tanh(small) = small */ + { + math_check_force_underflow (x); + return x * (one + tiny); /* tanh(small) = small */ + } u.words32.w0 = ix; /* Absolute value of x. */ if (ix >= 0x3fff0000) { /* |x| >= 1 */ |