significandl

SYNOPSIS
       #include <math.h>

       double significand(double x);
       float significandf(float x);
       long double significandl(long double x);

       Link with -lm.

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

       significand(), significandf(), significandl():
           _SVID_SOURCE || _BSD_SOURCE

DESCRIPTION
       These functions return the mantissa of x scaled  to  the  range  [1,2).
       They are equivalent to

           scalb(x, (double) -ilogb(x))

       This  function  exists mainly for use in certain standardized tests for
       IEEE 754 conformance.

ATTRIBUTES
       For  an  explanation  of  the  terms  used   in   this   section,   see
       attributes(7).

       +----------------+---------------+---------+
       |Interface       | Attribute     | Value   |
       +----------------+---------------+---------+
       |significand(),  | Thread safety | MT-Safe |
       |significandf(), |               |         |
       |significandl()  |               |         |
       +----------------+---------------+---------+

CONFORMING TO
       These  functions  are nonstandard; the double version is available on a
       number of other systems.

SEE ALSO
       ilogb(3), scalb(3)

COLOPHON
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GNU                               2015-04-19                    SIGNIFICAND(3)
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