floor(3) [freebsd man page]

FLOOR(3)						   BSD Library Functions Manual 						  FLOOR(3)

NAME

     floor, floorf, floorl -- largest integral value less than or equal to x

LIBRARY

     Math Library (libm, -lm)

SYNOPSIS

     #include <math.h>

     double
     floor(double x);

     float
     floorf(float x);

     long double
     floorl(long double x);

DESCRIPTION

     The floor(), floorf() and floorl() functions return the largest integral value less than or equal to x, expressed as a floating-point number.

SEE ALSO

     abs(3), ceil(3), fabs(3), ieee(3), math(3), rint(3), round(3), trunc(3)

STANDARDS

     The floor() function conforms to ISO/IEC 9899:1990 (``ISO C90'').	The floorf() and floorl() functions conform to ISO/IEC 9899:1999
     (``ISO C99'').

BSD
								 January 13, 2005							       BSD

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)