ldexp

Sommaire

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

SVr4, 4.3BSD, C89. The float and long double variants are C99 requirements.

SEE ALSO

frexp(3), modf(3), scalb(3)