LDEXP(3)

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

SYNOPSIS
#include <math.h>

double ldexp(double x, int exp);
float ldexpf(float x, int exp);
long double ldexpl(long double x, int exp);

Link with -lm.

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

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

SEE ALSO
frexp(3), modf(3), scalb(3)