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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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