NAME    [Toc]    [Back]

     ldexp - multiply floating-point number by integral power  of
2

SYNOPSIS    [Toc]    [Back]

     #include <math.h>

     double
     ldexp(double x, int exp);

DESCRIPTION    [Toc]    [Back]

     The  ldexp()  function multiplies a floating-point number by
an integral
     power of 2.

RETURN VALUES    [Toc]    [Back]

     The ldexp() function returns the value of x times  2  raised
to the power
     exp.

     If  the  resultant value would cause an overflow, the global
variable errno
     is set to ERANGE and the value HUGE is returned.

SEE ALSO    [Toc]    [Back]

     frexp(3), math(3), modf(3)

STANDARDS    [Toc]    [Back]

     The ldexp() function conforms to  ANSI  X3.159-1989  (``ANSI
C'').

OpenBSD      3.6                          April      19,     1994