significand(3)             Library Functions Manual             significand(3)

NAME
       significand, significandf, significandl - get mantissa of floating-
       point number

LIBRARY
       Math library (libm, -lm)

SYNOPSIS
       #include <math.h>

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

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

       significand(), significandf(), significandl():
           /* Since glibc 2.19: */ _DEFAULT_SOURCE
               || /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE

DESCRIPTION
       These functions return the mantissa of x scaled to the range
       [1, FLT_RADIX).  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 (), significandf (),            | Thread safety | MT-Safe |
       |significandl ()                             |               |         |
       +--------------------------------------------+---------------+---------+
STANDARDS
       None.

       significand()
              BSD.

HISTORY
       significand()
              BSD.

SEE ALSO
       ilogb(3), scalb(3)

Linux man-pages 6.7               2024-03-12                    significand(3)