Mathematical Library Functions                          floor(3M)



NAME
     floor, floorf, floorl - floor function

SYNOPSIS
     c99 [ flag... ] file... -lm [ library... ]
     #include 

     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 larg-
     est  integral  value not greater than x, expressed as a dou-
     ble, 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.

ATRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:



     
           ATRIBUTE TYPE               ATRIBUTE 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 5.11          Last change: 12 Jul 2006                    1