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MODF(3)                    Library Functions Manual                    MODF(3)

NAME
     modf, modff, modfl - 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);

     long double
     modfl(long double value, long double *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").

NetBSD 10.99                     March 7, 2016                    NetBSD 10.99