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ldexp, ldexpf, ldexpl - multiply floating-point
number by integral power of 2
#include <math.h>
double ldexp(double x, int exp);
float ldexp(float x, int exp);
long double ldexp(long double x, int exp);
The ldexp() function
returns the result of multiplying the floating-point number x by 2 raised
to the power exp.
SVID 3, POSIX, BSD 4.3, ISO 9899. The float
and the long double variants are C99 requirements.
frexp(3)
, modf(3)
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