significand - Online Linux Manual PageSection : 3
Updated : 2023-02-05
Source : Linux man-pages 6.03

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NAMEsignificand, significandf, significandl − get mantissa of floating-point number

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LIBRARYMath library (libm, −lm)

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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

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DESCRIPTIONThese 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.

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ATTRIBUTESFor an explanation of the terms used in this section, see attributes(7). InterfaceAttributeValue significand(), significandf(), significandl() Thread safetyMT-Safe

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

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SEE ALSOilogb(3), scalb(3) 0

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