ilogb man page on MacOSX

ilogb man page on MacOSX

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ILOGB(3)		 BSD Library Functions Manual		      ILOGB(3)

NAME
     ilogb — return exponent as an integer value

SYNOPSIS
     #include <math.h>

     int
     ilogb(double x);

     int
     ilogbl(long double x);

     int
     ilogbf(float x);

DESCRIPTION
     The ilogb() functions return the exponent of x as a signed integer value.

SPECIAL VALUES
     ilogb(�0) returns FP_ILOGB0.

     ilogb(�infinity) returns INT_MAX.

     ilogb(x) returns FP_ILOGBNAN if x is a NaN.

     A range error may occur if x is 0, �infinity, or a nan.

     The special return values FP_ILOGB0 and FP_ILOGBNAN are defined in
     math.h, and may differ between platforms.	INT_MAX is defined in lim‐
     its.h.

SEE ALSO
     math(3)

STANDARDS
     The ilogb() functions conform to ISO/IEC 9899:2011.

BSD			       December 11, 2006			   BSD

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