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function Trunc(X: Real): Int64;


Type Visibility Source Unit Parent
function public System.pas System System


Truncates a real number to an integer.

In Delphi code, the Trunc function truncates a real-type value to an integer-type value. X is a real-type expression. Trunc returns an Int64 value that is the value of X rounded toward zero.

If the truncated value of X is not within the Int64 range, an EInvalidOp exception is raised.

Note: Please consider checking the Floating-Point Rounding Routines topic for more insight on rounding routines.

See Also

Code Examples