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IfThen

unit
MathStrUtils
category
Miscellaneous routines

declaration
function IfThen(AValue: Boolean; const ATrue: Integer; const AFalse: Integer = 0): Integer; overload;
function IfThen(AValue: Boolean; const ATrue: Int64; const AFalse: Int64 = 0): Int64; overload;
function IfThen(AValue: Boolean; const ATrue: Double; const AFalse: Double = 0.0): Double; overload;
function IfThen(AValue: Boolean; const ATrue: string; const AFalse: string = ''): string; overload;

description
Returns one of two values, depending on the evaluation of an expression.

example
var i,j : integer;
		 s:string;
	
i:= 2003; j:= 1973;
s:='abba';
		 
(* fist example *)
IfThen(i > j, i-j, j-1) //results in 2003-1973 = 30

(* second example *)
IfThen(s = ReverseString(s),s + ' equals its reverse order!', 'NO')
//returns 'abba equals its reverse order'

in real code
String Types in Delphi
Understanding and managing string data types in Delphi's Object Pascal. Learn about differences between Short, Long, Wide and null-terminated strings.

see also
ReverseString,


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