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This commit is contained in:
Justine Tunney 2020-06-15 07:18:57 -07:00
commit c91b3c5006
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16
libc/math/logbl.c Normal file
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#include "libc/math/math.h"
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
long double logbl(long double x)
{
return logb(x);
}
#else
long double logbl(long double x)
{
if (!isfinite(x))
return x * x;
if (x == 0)
return -1/(x*x);
return ilogbl(x);
}
#endif