Mercurial > cpython-lru_cache-weakref
view Python/hypot.c @ 28383:f99cf9bfbbaf legacy-trunk
Include Python.h first which defines _XOPEN_SOURCE
which allows the file to compile and removes a warning about _XOPEN_SOURCE
being redefined (works on AIX 4.3 and 5.1 at least).
| author | Neal Norwitz <nnorwitz@gmail.com> |
|---|---|
| date | Sat, 22 Mar 2003 16:35:37 +0000 |
| parents | 2dea40e40d9d |
| children | 7bc4cc972b0b |
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/* hypot() replacement */ #include "pyconfig.h" #include "pyport.h" double hypot(double x, double y) { double yx; x = fabs(x); y = fabs(y); if (x < y) { double temp = x; x = y; y = temp; } if (x == 0.) return 0.; else { yx = y/x; return x*sqrt(1.+yx*yx); } }
