Declaration¶
Source position: fpexprpars.pp line 232
type
TFPGreaterThanOperation = class(TFPOrderingOperation)
public
function AsString : AnsiString;
end;
Inheritance¶
Description¶
The TFPGreaterThanOperation class implements the greater-than comparison operation (>) between two operands of compatible types. It extends TFPOrderingOperation to provide greater-than-specific comparison logic.
The operation compares two values and returns True if the left operand is greater than the right operand, False otherwise. It handles different data types appropriately, using numeric comparison for numbers, lexicographic comparison for strings, and chronological comparison for date/time values.
Type conversion is performed when necessary to compare values of different but compatible types, ensuring proper ordering across numeric types.
This class is used internally by the TFPExpressionParser class to construct an AST (Abstract Syntax Tree). There is normally no need for you to use or instantiate this class directly.
Methods¶
| Member | Visibility | Description |
|---|---|---|
| AsString | public | Get string representation of greater-than operation |
See also¶
| Name | Description |
|---|---|
| TFPExprNode | Class for representing nodes in expression trees |