modf(3) - NetBSD Manual Pages

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MODF(3)                 NetBSD Library Functions Manual                MODF(3)


NAME

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


LIBRARY

     Math Library (libm, -lm)


SYNOPSIS

     #include <math.h>

     double
     modf(double value, double *iptr);

     float
     modff(float value, float *iptr);


DESCRIPTION

     The modf() function breaks the argument value into integral and frac-
     tional 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'').

NetBSD 6.1.2                    March 21, 2006                    NetBSD 6.1.2