Mercurial > cpython-lru_cache-weakref

annotate Python/hypot.c @ 13658:f79434ee41fa legacy-trunk

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Mass ANSIfication of function definitions. Doesn't cover all 'extern' declarations yet, those come later.
author Thomas Wouters <thomas@python.org>
date Sat, 22 Jul 2000 18:47:25 +0000
parents 37d009b1bf45
children 59f8cedcf049
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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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f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
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7 double hypot(double x, double y)
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8 {
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9 double yx;
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10
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11 x = fabs(x);
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12 y = fabs(y);
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13 if (x < y) {
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14 double temp = x;
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15 x = y;
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16 y = temp;
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17 }
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18 if (x == 0.)
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19 return 0.;
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20 else {
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21 yx = y/x;
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22 return x*sqrt(1.+yx*yx);
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23 }
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24 }