1SIGNIFICAND(3)             Linux Programmer's Manual            SIGNIFICAND(3)
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NAME

6       significand,  significandf,  significandl  -  get mantissa of floating-
7       point number
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SYNOPSIS

10       #include <math.h>
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12       double significand(double x);
13       float significandf(float x);
14       long double significandl(long double x);
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16       Link with -lm.
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18   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
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20       significand(), significandf(), significandl(): _SVID_SOURCE ||
21       _BSD_SOURCE
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DESCRIPTION

24       The  significand()  function  returns  the  mantissa of x scaled to the
25       range [1,2).  It is equivalent to
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27           scalb(x, (double) -ilogb(x))
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29       This function exists mainly for use in certain standardized  tests  for
30       IEEE 754 conformance.
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CONFORMING TO

33       These  functions are non-standard; the double version is available on a
34       number of other systems.
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SEE ALSO

37       ilogb(3), scalb(3)
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COLOPHON

40       This page is part of release 3.22 of the Linux  man-pages  project.   A
41       description  of  the project, and information about reporting bugs, can
42       be found at http://www.kernel.org/doc/man-pages/.
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46GNU                               2009-02-04                    SIGNIFICAND(3)
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