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ILOGB (3) | C library functions | Unix Manual Pages | :man

NAME

ilogb, ilogbf, ilogbl - extract exponent

CONTENTS

Library
Synopsis
Description
See Also
Standards
History

LIBRARY


.Lb libm

SYNOPSIS


.In math.h int ilogb "double x" int ilogbf "float x" int ilogbl "long double x"

DESCRIPTION

ilogb, ilogbf and ilogbl return x ’s exponent, in integer format. ilogb ±oo returns INT_MAX, ilogb ±NaN returns FP_ILOGBNAN and ilogb 0 returns FP_ILOGB0.

SEE ALSO

frexp(3), ieee(3), math(3), scalbn(3)

STANDARDS

HISTORY


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