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| author | Joseph Myers <joseph@codesourcery.com> | 2013-04-26 19:25:19 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2013-04-26 19:25:19 +0000 |
| commit | f0302940e7c2acb587971e3c99dfbd00aa4e2134 (patch) | |
| tree | 14ca5247684a4ca2ef2ea2f46c4d375cde6aa6b9 /math/s_ccosh.c | |
| parent | aa630f590c9c7d070a7cdf3a2a88069ad6b63de9 (diff) | |
| download | glibc-f0302940e7c2acb587971e3c99dfbd00aa4e2134.tar glibc-f0302940e7c2acb587971e3c99dfbd00aa4e2134.tar.gz glibc-f0302940e7c2acb587971e3c99dfbd00aa4e2134.tar.bz2 glibc-f0302940e7c2acb587971e3c99dfbd00aa4e2134.zip | |
Fix csin, csinh, ccos, ccosh missing underflows (bug 15405).
Diffstat (limited to 'math/s_ccosh.c')
| -rw-r--r-- | math/s_ccosh.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/math/s_ccosh.c b/math/s_ccosh.c index 2c05b63de4..05b146ecbf 100644 --- a/math/s_ccosh.c +++ b/math/s_ccosh.c @@ -82,6 +82,19 @@ __ccosh (__complex__ double x) __real__ retval = __ieee754_cosh (__real__ x) * cosix; __imag__ retval = __ieee754_sinh (__real__ x) * sinix; } + + if (fabs (__real__ retval) < DBL_MIN) + { + volatile double force_underflow + = __real__ retval * __real__ retval; + (void) force_underflow; + } + if (fabs (__imag__ retval) < DBL_MIN) + { + volatile double force_underflow + = __imag__ retval * __imag__ retval; + (void) force_underflow; + } } else { |