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 ALSOilogb(3)STANDARDS
The logb() and logbf() functions conform to ISO/IEC 9899:1999(E).
BSD July 24, 2003 BSD