Mercurial > cpython-lru_cache-weakref

annotate Python/hypot.c @ 17104:a488a63cb867 legacy-trunk

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Fix PyFrame_FastToLocals() and counterpart to deal with cells and frees. Note there doesn't seem to be any way to test LocalsToFast(), because the instructions that trigger it are illegal in nested scopes with free variables. Fix allocation strategy for cells that are also formal parameters. Instead of emitting LOAD_FAST / STORE_DEREF pairs for each parameter, have the argument handling code in eval_code2() do the right thing. A side-effect of this change is that cell variables that are also arguments are listed at the front of co_cellvars in the order they appear in the argument list.
author Jeremy Hylton <jeremy@alum.mit.edu>
date Wed, 21 Mar 2001 16:43:47 +0000
parents 59f8cedcf049
children 2dea40e40d9d
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1 /* hypot() replacement */
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2
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3 #include "config.h"
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59f8cedcf049 merge Include/my*.h into Include/pyport.h
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4 #include "pyport.h"
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5
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f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
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6 double hypot(double x, double y)
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7 {
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8 double yx;
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9
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10 x = fabs(x);
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11 y = fabs(y);
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12 if (x < y) {
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13 double temp = x;
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14 x = y;
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15 y = temp;
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16 }
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17 if (x == 0.)
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18 return 0.;
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19 else {
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20 yx = y/x;
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21 return x*sqrt(1.+yx*yx);
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22 }
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23 }