Synopsis
#include <math.h>
float scalbnf(float x, int exp);
Description
scalbnf multiplies a floating-point number by an integral power of FLT_RADIX.
As floating-point aritmetic conforms to IEC 60559, FLT_RADIX is 2 and scalbnf is (in this implementation) identical to ldexpf.
scalbnf returns x * FLT_RADIX^exp.
Fast math library behavior
If the result overflows, errno is set to ERANGE and scalbnf returns HUGE_VALF.
IEC 60559 math library behavior
If x is ∞ or NaN, scalbnf returns x.
If the result overflows, scalbnf returns ∞.
Portability
scalbnf conforms to ISO/IEC 9899:1999 (C99).