LDEXP(3) BSD Library Functions Manual LDEXP(3)NAMEldexp — multiply floating-point number by integral power of 2
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <math.h>
double
ldexp(double x, int exp);
DESCRIPTION
The ldexp() function multiplies a floating-point number by an integral
power of 2.
RETURN VALUES
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 ALSOfrexp(3), math(3), modf(3)STANDARDS
The ldexp() function conforms to ISO/IEC 9899:1990 (“ISO C90”).
BSD April 19, 1994 BSD