FREXP(3) FREXP(3)
NAME
frexp, ldexp, modf - split into mantissa and exponent
SYNOPSIS
double frexp(value, eptr)
double value;
int *eptr;
double ldexp(value, exp)
double value;
double modf(value, iptr)
double value, *iptr;
DESCRIPTION
Frexp returns the mantissa of value and stores the exponent
indirectly through eptr, so that value =
frexp(value)*2**(*eptr).
Ldexp returns the quantity value*2**exp.
Modf returns the positive fractional part of value and
stores the integer part indirectly through iptr.