Div

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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