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| author | Allan Haldane <ealloc@gmail.com> | 2018-03-25 20:52:16 -0400 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-03-25 20:52:16 -0400 |
| commit | eca4175abcdff3fc506992c74fbab67aeb48153e (patch) | |
| tree | c34c8d4ad17ac5244da259ac7be09f7719f5fee3 | |
| parent | e4d678a2f5859d29a853d617e9e5bbd4b6241898 (diff) | |
| parent | 6480ccb32bd4eed7fd43cb604fd683c84966327a (diff) | |
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Merge pull request #10774 from mdboom/fix-sqrt-min-for-no-long-double
BUG: Fix SQRT_MIN for platforms with 8-byte long double
| -rw-r--r-- | numpy/core/src/npymath/npy_math_complex.c.src | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/numpy/core/src/npymath/npy_math_complex.c.src b/numpy/core/src/npymath/npy_math_complex.c.src index ea784ec5b..cf427dad8 100644 --- a/numpy/core/src/npymath/npy_math_complex.c.src +++ b/numpy/core/src/npymath/npy_math_complex.c.src @@ -1526,9 +1526,13 @@ const npy_float SQRT_MIN = 1.0842022e-19f; const npy_double SQRT_MIN = 1.4916681462400413e-154; /* sqrt(DBL_MIN) */ #endif #if @precision@ == 3 +#if NPY_SIZEOF_LONGDOUBLE == NPY_SIZEOF_DOUBLE +const npy_longdouble SQRT_MIN = 1.4916681462400413e-154; /* sqrt(DBL_MIN) */ +#else /* this is correct for 80 bit long doubles */ const npy_longdouble SQRT_MIN = 1.8336038675548471656e-2466l; #endif +#endif /* Avoid underflow when y is small. */ if (y < SQRT_MIN) { return (x * x); |