CentOS 5.4

GNU/Linux	CentOS 5.4
	ldexpl(3)

LDEXP

NAME

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

#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.

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

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