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:

 1program divDemo(input, output, stderr);
 2
 3var
 4	i: shortInt;
 5	j: shortInt;
 6	q: qWord;
 7	r: qWord;
 8
 9begin
10	i := 16;
11	j := 3;
12	q := 1000;
13	r := 300;
14	
15	writeLn(i div j);
16	writeLn(i / j);
17	writeLn(q div r);
18	writeLn(q / r);
19end.

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