C/math.h/llrint

llrint: returns the value of arg rounded to the nearest long long integer

<source lang="cpp">

//Declaration: long long int llrintf(float arg);

              long long int llrint(double arg); 
              long long int llrintl(long double arg);  

   
 
 #include <math.h>
 #include <stdio.h>
 int main(void)
 {
   printf("%l", llrintl (111111111111111.2));
   return 0;
 }

      </source>