Mercurial > cpython-lru_cache-weakref

annotate Python/hypot.c @ 9808:0bfaff11c573 legacy-trunk

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Ty Sarna writes: The following patches (relative to 1.5.2b1) enable Python dynamic loading to work on NetBSD platforms that use ELF (presnetly mips and alpha systems). They automaticly determine wether the system is ELF or a.out rather than using astatic list of platforms so that when other NetBSD platforms move to ELF, python will continue to work without change.
author Guido van Rossum <guido@python.org>
date Thu, 07 Jan 1999 21:50:41 +0000
parents 37d009b1bf45
children f79434ee41fa
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1 /* hypot() replacement */
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2
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3 #include "config.h"
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4 #include "myproto.h"
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5 #include "mymath.h"
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6
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7 double hypot(x, y)
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8 double x;
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9 double y;
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10 {
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11 double yx;
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12
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13 x = fabs(x);
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14 y = fabs(y);
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15 if (x < y) {
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16 double temp = x;
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17 x = y;
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18 y = temp;
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19 }
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20 if (x == 0.)
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21 return 0.;
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22 else {
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23 yx = y/x;
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24 return x*sqrt(1.+yx*yx);
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25 }
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26 }