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Report From: Delphi-BCB/RTL/Delphi/Format + Float [ Add a report in this area ]

Report #: 56502

Status: Closed

IntToStr doesn't support UInt64

Project: Delphi

Build #: 11.0.2902.10471

Version: 11.2

Submitted By: Jordan Russell

Report Type: Basic functionality failure

Date Reported: 1/1/2008 2:50:00 PM

Severity: Commonly encountered problem

Last Updated: 3/20/2012 2:24:39 AM

Platform: All versions

Internal Tracking #: 257020

Resolution: As Designed (Resolution Comments)

Resolved in Build: : 14.0.3513.24210

Duplicate of: None

Voting and Rating

Overall Rating: No Ratings Yet

0.00 out of 5

Total Votes: 16

Description

IntToStr returns unexpected/bogus results when passed a UInt64 type.

Solution:
Add a third overloaded version of IntToStr:

function IntToStr(Value: UInt64): string;
begin
FmtStr(Result, '%u', [Value]);
end;

(Note: The compiler overloading bug reported in #56504 may have to be fixed first.)

Steps to Reproduce:

var
  U: UInt64;
begin
  U := 100000000000;
  Writeln(IntToStr(U));
  U := High(U);
  Writeln(IntToStr(U));
end.

Expected result:

100000000000
18446744073709551615

Actual result:

1215752192
-1

Workarounds

None

Attachment

None

Comments

Paul McBryde at 12/2/2008 3:38:14 PM -

This is also a problem in C++ Builder 2009.

Tomohiro Takahashi at 12/4/2008 1:07:46 AM -

Yes, this issue still Open.

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