Div

div is division in which the fractional part (remainder) is discarded. The expression a div b returns the integer part of the result of dividing two integers. This is in contrast to the expression a / b which returns a real result.

Both sides of an expression using div must be one of the integer types. Using a real operand with div will result in a compile-time error:

 Error: Operator is not overloaded: […]

To get an integer result with a real operand, use trunc or round with the / operator.

To demonstrate what div does, consider the following example:

program divDemo(input, output, stderr);

var
    i: shortInt;
    j: shortInt;
    q: qWord;
    r: qWord;

begin
    i := 16;
    j := 3;
    q := 1000;
    r := 300;
    
    writeLn(i div j);
    writeLn(i / j);
    writeLn(q div r);
    writeLn(q / r);
end.

outputs:

$ ./divDemo
5
 5.3333333333333330E+000
3
 3.3333333333333335E+000

See also

• mod – remainder of integer division
• trunc – retrieve integer part of real numbers
• round – round to integer
• math.divmod – retrieve both quotient and remainder

From the Free Pascal wiki, page "Div", as it stood on 2021-08-31 after a change by Kai Burghardt, out of the wiki's dump of 2024-05-26. Copyright stays with the author who wrote it, according to the old wiki's Licensing page. If you have concerns about this material, message the admin.