17 lines
292 B
C
17 lines
292 B
C
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/*
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* Written by J.T. Conklin <jtc@netbsd.org>.
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* Changes for long double by Ulrich Drepper <drepper@cygnus.com>
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* Public domain.
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*/
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#include <math.h>
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double
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logb (double x)
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{
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double res;
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asm ("fxtract\n\t"
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"fstp %%st" : "=t" (res) : "0" (x));
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return res;
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}
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