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1.9.3p551(2014-11-13revision48407)
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missing
hypot.c
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/* public domain rewrite of hypot */
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#include "
ruby/missing.h
"
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#include <math.h>
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double
hypot
(
double
x,
double
y)
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{
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if
(x < 0) x = -x;
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if
(y < 0) y = -y;
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if
(x < y) {
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double
tmp = x;
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x = y; y = tmp;
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}
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if
(y == 0.0)
return
x;
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y /= x;
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return
x * sqrt(1.0+y*y);
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}
missing.h
hypot
RUBY_EXTERN double hypot(double, double)
Definition:
hypot.c:6
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