Query: scalb
OS: freebsd
Section: 3
Links: freebsd man pages all man pages forum categories
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IEEE_TEST(3) BSD Library Functions Manual IEEE_TEST(3)NAMEscalb, scalbf, significand, significandf -- IEEE test functionsLIBRARYMath Library (libm, -lm)SYNOPSIS#include <math.h> double scalb(double x, double n); float scalbf(float x, float n); double significand(double x); float significandf(float x);DESCRIPTIONThese functions allow users to test conformance to IEEE Std 754-1985. Their use is not otherwise recommended. scalb(x, n) and scalbf(x, n) return x*(2**n) computed by exponent manipulation. If n is not an integer, +-infinity, or an NaN, the result is unspecified. significand(x) and significandf(x) return sig, where x := sig * 2**n with 1 <= sig < 2. significand(x) and significandf(x) are not defined when x is 0, +-infinity, or NaN.SEE ALSOieee(3), math(3)STANDARDSIEEE Std 754-1985BSDNovember 6, 2005 BSD