scalbf man page on MirBSD

scalbf man page on MirBSD

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IEEE_TEST(3)		   BSD Programmer's Manual		  IEEE_TEST(3)

NAME
     logb, logbf, scalb, scalbf, significand, significandf - IEEE test func-
     tions

LIBRARY
     libm

SYNOPSIS
     #include <math.h>

     double
     logb(double x);

     float
     logbf(float x);

     double
     scalb(double x, double n);

     float
     scalbf(float x, float n);

     double
     significand(double x);

     float
     significandf(float x);

DESCRIPTION
     These functions allow users to test conformance to IEEE Std 754-1985.
     Their use is not otherwise recommended.

     logb(x) returns x's exponent n, a signed integer converted to
     double-precision floating-point. logb(+-Infinity) = +Infinity; logb(0) =
     -Infinity with a division by zero exception.

     scalbn(x, n) returns x*(2**n) computed by exponent manipulation.

     significand(x) returns sig, where x := sig * 2**n with 1 <= sig < 2.
     significand(x) is not defined when x is 0, +-Infinity, or NaN.

SEE ALSO
     ieee(3), math(3)

STANDARDS
     IEEE Std 754-1985

MirOS BSD #10-current		March 10, 1994				     1

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