NAME    [Toc]    [Back]

     modf - extract signed integral and fractional values from floating-point
     number

LIBRARY    [Toc]    [Back]

     Standard C Library (libc, -lc)

SYNOPSIS    [Toc]    [Back]

     #include <math.h>

     double
     modf(double value, double *iptr);

DESCRIPTION    [Toc]    [Back]

     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    [Toc]    [Back]

     The modf() function returns the signed fractional part of value.

SEE ALSO    [Toc]    [Back]

     frexp(3), ldexp(3), math(3)

STANDARDS    [Toc]    [Back]

     The modf() function conforms to ANSI X3.159-1989 (``ANSI C'').

BSD                              June 4, 1993                              BSD