MODF(3) NEWLIB MODF(3)NAME
1.41 `modf', `modff'--split fractional and integer parts
SYNOPSIS
#include <math.h>
double modf(double VAL, double *IPART);
float modff(float VAL, float *IPART);
DESCRIPTION
`modf' splits the double VAL apart into an integer part and a frac‐
tional part, returning the fractional part and storing the integer part
in `*IPART'. No rounding whatsoever is done; the sum of the integer
and fractional parts is guaranteed to be exactly equal to VAL.
That is, if REALPART = modf(VAL, &INTPART); then ``REALPART+INTPART''
is the same as VAL. `modff' is identical, save that it takes and
returns `float' rather than `double' values.
RETURNS
The fractional part is returned. Each result has the same sign as the
supplied argument VAL.
PORTABILITY
`modf' is ANSI C. `modff' is an extension.
SEE ALSO
modf is part of the library. The full documentation for is maintained
as a Texinfo manual. If info and are properly installed at your site,
the command
info
will give you access to the complete manual.
NEWLIB April 2010 MODF(3)
