vendor: OpenCV 5.0.0 snapshot at 40738fb16ceddb5fb3fea747585f7ce6abb0605b
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Vendored
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#include "f2c.h"
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double pow_di(double *ap, int *bp)
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{
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double p = 1;
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double x = *ap;
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int n = *bp;
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if(n != 0)
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{
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if(n < 0)
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{
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n = -n;
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x = 1/x;
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}
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unsigned u = (unsigned)n;
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for(;;)
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{
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if((u & 1) != 0)
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p *= x;
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if((u >>= 1) == 0)
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break;
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x *= x;
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}
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}
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return p;
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}
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