ilogbl man page on OpenBSD

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ILOGB(3)		  OpenBSD Programmer's Manual		      ILOGB(3)

NAME
     ilogb, ilogbf, ilogbl - extract exponent

SYNOPSIS
     #include <math.h>

     int
     ilogb(double x);

     int
     ilogbf(float x);

     int
     ilogbl(long double x);

DESCRIPTION
     ilogb() returns x's exponent n, in integer format.	 ilogb(+-infinity)
     returns INT_MAX and ilogb(0) returns INT_MIN.  The ilogbf() function is a
     single precision version of ilogb().  The ilogbl() function is an
     extended precision version of ilogb().

SEE ALSO
     math(3)

STANDARDS
     IEEE Std 754-1985

HISTORY
     The ilogb, ilogbf and ilogbl functions appeared in 4.3BSD, NetBSD 1.1 and
     OpenBSD 4.5, respectively.

OpenBSD 4.9			August 3, 2009			   OpenBSD 4.9
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