sunos man page for floor

floor(3M)						  Mathematical Library Functions						 floor(3M)

NAME
       floor, floorf, floorl - floor function

SYNOPSIS
       cc [ flag... ] file... -lm [ library... ]
       #include <math.h>

       double floor(double x);

       float floorf(float x);

       long double floorl(long double x);

DESCRIPTION
       These functions compute the largest integral value not greater than x.

RETURN VALUES
       Upon  successful  completion,  these  functions return the largest integral value not greater than x, expressed as a double, float, or long
       double, as appropriate for the return type of the function.

       If x is NaN, a NaN is returned.

       If x is +-Inf or +-0, x is returned.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO
       ceil(3M), feclearexcept(3M), fetestexcept(3M), isnan(3M), math.h(3HEAD), attributes(5), standards(5)

SunOS 5.10							    1 Sep 2002								 floor(3M)