IEEE_TEST(3) BSD 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 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 ALSO ieee(3), math(3)STANDARDS
IEEE Std 754-1985
BSD November 6, 2005 BSD
Check Out this Related Man Page
significand(3M) Mathematical Library Functions significand(3M)NAME
significand, significandf, significandl - significand function
SYNOPSIS
c99 [ flag... ] file... -lm [ library... ]
#include <math.h>
double significand(double x);
float significandf(float x);
long double significandl(long double x);
DESCRIPTION
If x equals sig * 2^n with 1<= sig < 2, then these functions return sig.
RETURN VALUES
Upon successful completion, these functions return sig.
If x is either 0, +-Inf or NaN, x is returned.
ERRORS
No errors are defined.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Stable |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO logb(3M), scalb(3M), attributes(5)SunOS 5.11 12 Jul 2006 significand(3M)
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