Mercurial > cpython-lru_cache-weakref

annotate Python/fmod.c @ 29223:ea2958bd4271 legacy-trunk

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Remove comment with very long lines that explained what the code used to do. XXX Please be careful when checking in patches to avoid checking in junk that explains what the patched code used to do.
author Jeremy Hylton <jeremy@alum.mit.edu>
date Thu, 22 May 2003 15:47:02 +0000
parents 2dea40e40d9d
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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.
Martin v. Löwis <martin@v.loewis.de>
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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 }