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IEEE_TEST(3) FreeBSD Library Functions Manual IEEE_TEST(3) NAME scalb, scalbf, significand, significandf -- IEEE test functions LIBRARY Math 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); DESCRIPTION These 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 manipu- lation. If n is not an integer, +-infinity, or an NaN, the result is un- specified. 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 ALSO ieee(3), math(3) STANDARDS IEEE Std 754-1985 FreeBSD 13.0 November 6, 2005 FreeBSD 13.0
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | SEE ALSO | STANDARDS
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