floor() returns the largest floating-point number of integral
value less than or equal to x.
Entry-Point Names
Generic
Function Data Type OpenVMS Tru64 UNIX
Name Required
floor S_FLOAT math$floor_s floorf
T_FLOAT math$floor_t floor
X_FLOAT math$floor_x floorl
F_FLOAT math$floor_f
G_FLOAT math$floor_g