NAME¶

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

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():

DESCRIPTION¶

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

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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