ToStr
About
ToStr is helper function to convert any value to a string representation, including records and arrays, in the same spirit of 'print' functions found in scripting languages. Its usefull for logging and debugging.
function ToStr(const AValue; ATypeInfo: PTypeInfo): AnsiString;Parametes:
- AValue: The variable to convert to string.
- ATypeInfo: The type information returned by 'TypeInfo' compiler intrinsic.
Download
You can get the code at https://github.com/correaelias/TypeUtils
Examples
Simple example.
program test;
uses TypeUtils;
var
Arr: array[1 .. 3] of Integer = (1, 2, 3);
begin
WriteLn(ToStr(Arr, TypeInfo(Arr)));
end.Example converts array of record.
program Test;
uses TypeUtils, SysUtils;
type
TEmployee = record
FName: ShortString;
FId: LongInt;
FSalary: Currency;
end;
var
Employees: array of TEmployee;
I: LongInt;
begin
SetLength(Employees, 10);
for I := 0 to High(Employees) do
begin
with Employees[I] do
begin
FName := 'John Doe ' + I.ToString;
FId := I;
FSalary := 2000.25 * I;
end;
end;
WriteLn(ToStr(Employees, TypeInfo(Employees)));
end.It shows:
[('John Doe 0', 0, 0), ('John Doe 1', 1, 2000.25), ('John Doe 2', 2, 4000.5),
('John Doe 3', 3, 6000.75), ('John Doe 4', 4, 8001), ('John Doe 5', 5, 10001.25),
('John Doe 6', 6, 12001.5), ('John Doe 7', 7, 14001.75), ('John Doe 8', 8, 16002),
('John Doe 9', 9, 18002.25)]From the Free Pascal wiki, page "ToStr", as it stood on 2022-08-26 after a change by Alextp, out of the wiki's dump of 2024-05-26. Copyright stays with the author who wrote it, according to the old wiki's Licensing page. If you have concerns about this material, message the admin.
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