Manpage of MODF
MODF
Section: NEWLIB (3)
Updated: 2005 Feb 23
Index
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NAME
1.37 `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
fractional 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
libm
library.
The full documentation for
libm
is maintained as a Texinfo manual. If
info
and
libm
are properly installed at your site, the command
-
info libm
will give you access to the complete manual.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURNS
-
- PORTABILITY
-
- SEE ALSO
-
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