0016219: String in const array of string does not compile - Free Pascal/Lazarus Bug Tracker

View Issue Details [ Jump to Notes ]

[ Issue History ] [ Print ]

ID

Project

Category

View Status

Date Submitted

Last Update

0016219

FPC

Compiler

public

2010-04-07 07:44

2010-11-16 16:57

Reporter

Thierry Coq

Assigned To

Jonas Maebe

Priority

normal

Severity

major

Reproducibility

always

Status

closed

Resolution

fixed

Platform

i386

OS

Windows

OS Version

XP

Product Version

2.4.1

Product Build

24077

Target Version

Fixed in Version

2.6.0

Summary

0016219: String in const array of string does not compile

Description

The following piece of code results in a compiler abort with the following message: Fatal: Compilation aborted.

const

  aStrArray: array [0..0] of String = (

    #$ffff' '

  );

The same string in a const, without the array, compiles:
const
  aStrArray: #$ffff' ';

If the $ffff is the last part of the string, it compiles?

Steps To Reproduce

Take the piece of code above and put it in a simple program. Compile. The compilation will abort.

A Lazarus project reproducing the problem is attached.

Additional Information

This was also tested as a bug on 2.3.1.
However in Linux, I was unable to reproduce the bug (FPC 2.4.0, Build 22279, 25-10-2009).

A work-around for me that worked was to declare a (long) list of string constants, each with a different name.

Tags

No tags attached.

FPCOldBugId

Fixed in Revision

15240

BugConstStringArray.zip [^] (424,109 bytes) 2010-04-07 07:44

Relationships

has duplicate

resolved

Initialized variables string with utf8

Notes
(0036514) Bart Broersma (reporter) 2010-04-07 11:58	fpc 2.4.1 / Win9x With {$H-} when compiling I get a warning: strarray.pp(9,3) Warning: string "`~Z" is longer than "255" writeln('>',aStrArray[0],'<') gives: >`~Z # ,Á_ P \q? ü £pDîZ <¦_ P Ó)< ¦_ ü < If you declare const aStrArray: #$ffff' '; no such warning is shown and writeln('>',aStr,'<') gives >? < With {$H+} compiling fails and the compiler crashes: Free Pascal Compiler version 2.4.1 [2010/03/12] for i386 Copyright (c) 1993-2009 by Florian Klaempfl Target OS: Win32 for i386 Compiling strarray.pp Fatal: Compilation aborted An unhandled exception occurred at $00402142 : EAccessViolation : Access violation $00402142 $004E2C33 $004E2C43 $004C95AA $004C5424 $004C2553 $004C492F $0042E324 $0041117C $004017E6 Declaring a string as having #$FFFF in it, to me looks as if it is supposed to be a WideString, and #$FFFF being a WideChar? Declaring the array as array[0..0] of WideString resolves the issue. Fpc should however not crash on compiling if it is declared as array[0..0] of string.

(0037359) Jonas Maebe (manager) 2010-05-08 13:02	The compiler now gives an error if you try to declare a short/ansistring typed constant containing wide/unicode strings. The reason is that the compiler cannot convert a wide/unicode string into an ansi/shortstring at compile-time, since it does not know what the ansi encoding will be when the program is executed (and this ansi encoding can even be different every time it is executed). Kylix does compile the example program, but it converts the #$ffff into #$ff#$20, which I think makes no sense and is a bug in Kylix.

Issue History
Date Modified	Username	Field	Change
2010-04-07 07:44	Thierry Coq	New Issue
2010-04-07 07:44	Thierry Coq	File Added: BugConstStringArray.zip
2010-04-07 11:58	Bart Broersma	Note Added: 0036514
2010-05-08 13:02	Jonas Maebe	Fixed in Revision	=> 15240
2010-05-08 13:02	Jonas Maebe	Status	new => resolved
2010-05-08 13:02	Jonas Maebe	Fixed in Version	=> 2.5.1
2010-05-08 13:02	Jonas Maebe	Resolution	open => fixed
2010-05-08 13:02	Jonas Maebe	Assigned To	=> Jonas Maebe
2010-05-08 13:02	Jonas Maebe	Note Added: 0037359
2010-11-16 16:57	Jonas Maebe	Status	resolved => closed
2010-12-02 23:58	Jonas Maebe	Relationship added	has duplicate 0018140

MantisBT 1.2.12[^]

Copyright © 2000 - 2012 MantisBT Group