diff options
Diffstat (limited to 'math/s_catanhf.c')
| -rw-r--r-- | math/s_catanhf.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/math/s_catanhf.c b/math/s_catanhf.c index 0ee69a5ba0..0e55aff16c 100644 --- a/math/s_catanhf.c +++ b/math/s_catanhf.c @@ -112,7 +112,11 @@ __catanhf (__complex__ float x) } if (absy < FLT_EPSILON / 2.0f) - den = (1.0f - absx) * (1.0f + absx); + { + den = (1.0f - absx) * (1.0f + absx); + if (den == -0.0f) + den = 0.0f; + } else if (absx >= 1.0f) den = (1.0f - absx) * (1.0f + absx) - absy * absy; else if (absx >= 0.75f || absy >= 0.5f) |