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Manual Reference Pages  - LDEXP (3)

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ldexp, ldexpf, ldexpl - multiply floating-point number by integral power of 2

CONTENTS

Synopsis
Description

#include <math.h> 



double ldexp(double x, int exp); 



float ldexp(float x, int exp); 



long double ldexp(long double x, int exp); 

The ldexp() function returns the result of multiplying the floating-point number x by 2 raised to the power exp.

SVID 3, POSIX, BSD 4.3, ISO 9899. The float and the long double variants are C99 requirements.

frexp(3), modf(3)

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