scalbn(3M)

NAME

scalbn − load exponent of a radix-independent floating-point number

cc [ flag ... ] file ... −lm [ library ... ]

#include <math.h>

double scalbn(double x, int n);

The scalbn() function computes x ∗ rn, where r is the radix of the machine’s floating point arithmetic.

Upon successful completion, the scalbn() function returns x ∗ rn.

If the correct value would overflow, scalbn() returns ±HUGE_VAL (according to the sign of x).

The scalbn() function returns x when x is ±Inf.

If x is NaN, then scalbn() returns NaN.

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE	ATTRIBUTE VALUE
MT-Level	MT-Safe