ilogbd64 man page on HP-UX

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ilogbd64(3M)							  ilogbd64(3M)

NAME
       ilogbd64(), ilogbd128(), ilogbd32() - decimal exponent functions

SYNOPSIS
DESCRIPTION
       The function computes the exponent of the floating point value x.  For‐
       mally, the return value is the integral part of log base 10 of |x| as a
       signed integer value, for nonzero x.

       If  x  is subnormal, it is treated as though it were normalized, before
       the exponent is determined.

       is equivalent to for all values of x

       is a version of it takes a argument.

       is a version of it takes a argument.

       These math functions are supported for HP-UX 11i	 Version  3  September
       2008 Update and forward.

USAGE
       To use any of these functions, compile with the option.

       Make sure your program defines and then includes

       Link in the math library by specifying or on the linking command line.

       For more information, see the at the following site:

RETURN VALUE
       If x returns and raises the invalid floating-point exception.

       If x is zero, returns and raises the invalid floating-point exception.

       If x is NaN, returns and raises the invalid floating-point exception.

ERRORS
       If x is NaN, sets to

       If x is zero or infinite, sets to

SEE ALSO
       frexpd64(3M), logbd64(3M), scalbnd64(3M), scalblnd64(3M), math(5).

STANDARDS CONFORMANCE
       These  functions	 conform  to ISO/IEC TR 24732, "Extension for the pro‐
       gramming language C to support decimal floating-point arithmetic".

			   HP Integrity Server Only		  ilogbd64(3M)
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