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C COMPILER LIBRARY FUNCTIONS->Detailed Descriptions->ldexp() ldexpl()

Summary

#include <math.h>
    

double ldexp(double x, int exp)	Compute value from mantissa and exponent
long double ldexpl(long double x, int exp)	Compute value from mantissa and exponent to long double precision

Parameter
    

x	Floating point value
exp	Integer exponent

Description

These functions multiply the floating point value of x by an integral power of 2.

Return

These functions return the value of x times 2 raised to the power exp.