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25 lines
393 B
C
25 lines
393 B
C
#undef abs
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#include <math.h>
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double
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f__cabs (double real, double imag)
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{
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double temp;
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if (real < 0)
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real = -real;
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if (imag < 0)
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imag = -imag;
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if (imag > real)
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{
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temp = real;
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real = imag;
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imag = temp;
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}
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if ((real + imag) == real)
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return (real);
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temp = imag / real;
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temp = real * sqrt (1.0 + temp * temp); /*overflow!! */
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return (temp);
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}
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