23 lines
408 B
C
23 lines
408 B
C
double POWR(statlink, pow, num)
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int *statlink ;
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int pow ;
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double num ;
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{
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int p ;
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register double n, r;
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if (pow < 0) {
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p = -pow;
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n = 1.0/num;
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} else {
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p = pow;
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n = num;
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}
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if ( (p & 1) != 0 ) { r = n; } else { r = 1.0; }
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p >>= 1;
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while ( p != 0 ) {
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n *= n;
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if ( (p & 1) != 0 ) r *= n;
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p >>= 1;
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}
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return(r) ;
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}
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