NAME
modf
- extract signed integral and fractional values from floating-point number
LIBRARY
Math Library (libm, -lm)
SYNOPSIS
double
modf(
double value
, double *iptr
)
float
modff(
float value
, float *iptr
)
DESCRIPTION
The
modf(
)
function breaks the argument
value
into integral and fractional parts, each of which has the
same sign as the argument.
It stores the integral part as a
double
in the object pointed to by
iptr
.
RETURN VALUES
The
modf(
)
function returns the signed fractional part of
value
.
SEE ALSO
frexp(3),
ldexp(3),
math(3)
STANDARDS
The
modf(
)
function conforms to
ANSI X3.159-1989 (``ANSI C89'') .