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Trunc

Truncate a floating point value.

Declaration

Source position: mathh.inc line 117

  function Trunc(d: ValReal) : Int64;

Description

Trunc returns the integer part of X, which is always smaller than (or equal to) X in absolute value.

Errors

None.

See also

Name Description
Frac Return fractional part of floating point value.
Int Calculate integer part of floating point value.
Round Round floating point value to nearest integer number.

Example

Program Example70;
{ Program to demonstrate the Trunc function. }
begin
  Writeln (Trunc(123.456));  { Prints 123  }
  Writeln (Trunc(-123.456)); { Prints -123 }
  Writeln (Trunc(12.3456));  { Prints 12   }
  Writeln (Trunc(-12.3456)); { Prints -12  }
end.