logb man page on OpenDarwin

logb man page on OpenDarwin

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LOGB(3)			 BSD Library Functions Manual		       LOGB(3)

NAME
     logb — return exponent as a floating-point number

SYNOPSIS
     #include <math.h>

     double
     logb(double x);

     float
     logbf(float x);

DESCRIPTION
     The logb() and logbf() functions return the exponent of x, represented as
     a floating-point number.

SPECIAL VALUES
     logb(�0) returns -infinity and raises the "divide-by-zero" floating-point
     exception.

     logb(�infinity) returns +infinity.

SEE ALSO
     ilogb(3)

STANDARDS
     The logb() and logbf() functions conform to ISO/IEC 9899:1999(E).

BSD				 July 24, 2003				   BSD

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