Mathematical Library Functions                          trunc(3M)



NAME
     trunc, truncf, truncl - round to truncated integer value

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

     double trunc(double x);


     float truncf(float x);


     long double truncl(long double x);


DESCRIPTION
     These functions round their argument to the  integer  value,
     in  floating  format,  nearest to but no larger in magnitude
     than the argument.

RETURN VALUES
     Upon successful completion, these functions return the trun-
     cated integer value.


     If x is NaN, a NaN is returned.


     If x is ]0 or ]Inf, x is returned.

ERORS
     No errors are defined.

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



     
           ATRIBUTE TYPE               ATRIBUTE VALUE       
    
     Interface Stability          Standard                    
    
     MT-Level                     MT-Safe                     
    


SEE ALSO
     math.h(3HEAD), attributes(5), standards(5)




SunOS 5.11          Last change: 12 Jul 2006                    1