modf() splits a floating-point number x into a fractional part f
and an integer part i such that |f| < 1.0 and (f + i) = x. Both f
and i have the same sign as x. modf() returns f and stores i into
the location pointed to by n.
Entry-Point Names
Generic
Function Data Type OpenVMS Tru64 UNIX
Name Required
modf S_FLOAT math$modf_s modff
T_FLOAT math$modf_t modf
X_FLOAT math$modf_x modfl
F_FLOAT math$modf_f
G_FLOAT math$modf_g