Mathematical Library Functions                          round(3M)



NAME
     round, roundf, roundl - round to nearest  integer  value  in
     floating-point format

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

     double round(double x);


     float roundf(float x);


     long double roundl(long double x);


DESCRIPTION
     These functions round their argument to the nearest  integer
     value  in floating-point format, rounding halfway cases away
     from 0, regardless of the current rounding direction.

RETURN VALUES
     Upon  successful  completion,  these  functions  return  the
     rounded integer value.


     If x is NaN, a NaN is returned.


     If x is ]0 or ] Inf, 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
     feclearexcept(3M), fetestexcept(3M),  math.h(3HEAD),  attri-
     butes(5), standards(5)





SunOS 5.11          Last change: 12 Jul 2006                    1