ldexp [C++ Reference]
Keywords: c,math,ldexp
Date: 2009-12-11T04:55:09-0800

## ldexp

Syntax:

        #include <cmath>
        double ldexp( double num, int exp );

The ldexp() function returns num * (2 ^ exp). And get this: if an overflow occurs, HUGE_VAL is returned.

C++ also provides the following overloaded forms:

        #include <cmath>
        float ldexp( float num, int exp ); // same as ldexpf() in C99
        long double ldexp( long double num, int exp ); // same as ldexpl() in C99

Related Topics: frexp, modf