Linux cli command significandf

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NAME 🖥️ significandf 🖥️

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).

InterfaceAttributeValue

significand(), significandf(), significandl()

Thread safetyMT-Safe

STANDARDS

None.

significand()
BSD.

HISTORY

significand()
BSD.

SEE ALSO

ilogb(3), scalb(3)

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