standard.C.casts.int64

int64 is available since version 1.0.

Prototype:

number int64(number)

Description:

Gets the 64 bits signed integer value of a number.

Return value:

Returns the 64 bits signed integer value of a number.

Example
import standard.C.casts

class Main {
     function Main() {
          var decimal_number=-12.345;
          var a_number=12337500087987979123123;

          echo "The 64 bit representation of " + decimal_number + " is ";
          echo int64(decimal_number);
          echo "\n";

          echo "The 64 bit representation of " + a_number + " is ";
          echo int64(a_number);
          echo "\n";
          
     }
}
 

Results 
The 64 bit representation of -12.345000000000001 is -12
The 64 bit representation of 12337500087987980000000 is -9223372036854775800