NAME    [Toc]    [Back]

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

LIBRARY    [Toc]    [Back]

     Standard C Library (libc, -lc)

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 ISO/IEC 9899:1990 (``ISO C89'').


FreeBSD 5.2.1			April 19, 1994			 FreeBSD 5.2.1