freebsd man page for ldexp

LDEXP(3)						   BSD Library Functions Manual 						  LDEXP(3)

NAME
     ldexp, ldexpf, ldexpl -- multiply floating-point number by integral power of 2

LIBRARY
     Math Library (libm, -lm)

SYNOPSIS
     #include <math.h>

     double
     ldexp(double x, int exp);

     float
     ldexpf(float x, int exp);

     long double
     ldexpl(long double x, int exp);

DESCRIPTION
     The ldexp(), ldexpf(), and ldexpl() functions multiply a floating-point number by an integral power of 2.

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

SEE ALSO
     frexp(3), math(3), modf(3)

STANDARDS
     The ldexp(), ldexpf(), and ldexpl() functions conform to ISO/IEC 9899:1999 (``ISO C99'').

BSD
								   March 4, 2005							       BSD