Mercurial > cpython-lru_cache-weakref

annotate Python/fmod.c @ 37252:52debbc3cc08 2.4

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Backport of compile.c part of r41531 (neal.norwitz, 2005-11-24): Fix a ref leak.
author Martin v. Löwis <martin@v.loewis.de>
date Mon, 27 Mar 2006 21:47:54 +0000
parents 2dea40e40d9d
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853b736a6a9e Added copyright notice.
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2 /* Portable fmod(x, y) implementation for systems that don't have it */
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2dea40e40d9d Patch #411138: Rename config.h to pyconfig.h. Closes bug #231774.
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4 #include "pyconfig.h"
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59f8cedcf049 merge Include/my*.h into Include/pyport.h
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6 #include "pyport.h"
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7 #include <errno.h>
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9 double
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10 fmod(double x, double y)
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11 {
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12 double i, f;
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13
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14 if (y == 0.0) {
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15 errno = EDOM;
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16 return 0.0;
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17 }
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19 /* return f such that x = i*y + f for some integer i
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20 such that |f| < |y| and f has the same sign as x */
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21
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22 i = floor(x/y);
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23 f = x - i*y;
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24 if ((x < 0.0) != (y < 0.0))
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25 f = f-y;
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26 return f;
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27 }