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
