Lazarus
Home
Help
TinyPortal
Search
Login
Register
Lazarus
»
Forum
»
Programming
»
General
»
Error: Operator is not overloaded?
Free Pascal
Website
Downloads
Wiki
Documentation
Bugtracker
Mailing List
Lazarus
Website
Downloads (Laz+FPC)
Packages (OPM)
FAQ
Wiki
Documentation (RTL/FCL/LCL)
Bugtracker
CCR Bugs
IRC channel
GIT
Mailing List
Other languages
Foundation
Website
Useful Wiki Links
Project Roadmap
Getting the Source
Screenshots
How to use the forum
About donations (wiki)
Bookstore
Computer Math and Games in Pascal
(preview)
Lazarus Handbook
Search
Advanced search
Recent
splitting an image
by
madref
[
Today
at 10:18:58 am]
Parameter passing odditie...
by
Nitorami
[
Today
at 09:59:28 am]
how to tweek fpmake to co...
by
paule32
[
Today
at 08:23:49 am]
Why isn't TTIRadioGroup's...
by
egsuh
[
Today
at 08:09:35 am]
FpDebug questions
by
440bx
[
Today
at 03:43:41 am]
Lazarus for Windows on aa...
by
Wallaby
[April 23, 2024, 11:46:56 pm]
Can function be used for ...
by
jamie
[April 23, 2024, 10:53:10 pm]
(Solved) TIndexedAVLTree ...
by
lainz
[April 23, 2024, 10:49:03 pm]
Demo Scene Picture sinwav...
by
KodeZwerg
[April 23, 2024, 10:26:21 pm]
fkInternalCalc
by
zraja
[April 23, 2024, 09:31:07 pm]
A fairly simple sound sol...
by
KodeZwerg
[April 23, 2024, 09:23:37 pm]
add new targets to make
by
marcov
[April 23, 2024, 08:38:42 pm]
Quirky windows
by
ASerge
[April 23, 2024, 07:07:16 pm]
[Request] Demo Scene Sub ...
by
Gigatron
[April 23, 2024, 06:29:39 pm]
Unlocking Files
by
KodeZwerg
[April 23, 2024, 06:03:08 pm]
[SOLVED] trunk bug for mi...
by
Key-Real
[April 23, 2024, 05:56:32 pm]
Demo Scene Bitmap Font Sc...
by
Gigatron
[April 23, 2024, 05:56:27 pm]
Compile/Convert Delphi pr...
by
Martin_fr
[April 23, 2024, 05:43:11 pm]
Generics - correct syntax
by
Thaddy
[April 23, 2024, 05:40:59 pm]
InstallAware Using Lazaru...
by
msintle
[April 23, 2024, 05:26:36 pm]
Xcode Command Line Tools ...
by
Joseph
[April 23, 2024, 05:16:39 pm]
Offical launch of the 1 B...
by
Hartmut
[April 23, 2024, 04:49:29 pm]
what to do if my target M...
by
nickysn
[April 23, 2024, 04:16:02 pm]
compiler error in unit
by
paule32
[April 23, 2024, 03:49:50 pm]
Multithreading - synchron...
by
mika
[April 23, 2024, 01:48:51 pm]
« previous
next »
Print
Pages: [
1
]
Author
Topic: Error: Operator is not overloaded? (Read 1445 times)
Dan3468298
Full Member
Posts: 131
Error: Operator is not overloaded?
«
on:
August 04, 2020, 03:27:57 pm »
Specific is error is
Code: Pascal
[Select]
[+]
[-]
unit1
.
pas
(
158
,
24
)
Error
:
Operator is
not
overloaded
:
"
Set
Of
Char"
or
"Char"
Why can't I do an 'or' conditional?
Code: Pascal
[Select]
[+]
[-]
procedure
TForm1
.
txtHeightKeyPress
(
Sender
:
TObject
;
var
Key
:
char
)
;
begin
if
Key
in
[
'0'
..
'9'
]
or
Key
=
''
then
//allow user input
else
Key
:
=
#0
;
end
;
Logged
MacOS 10.15.5/Lazarus 2.0.10 Build 2020-07-07
JdeHaan
Full Member
Posts: 121
Re: Error: Operator is not overloaded?
«
Reply #1 on:
August 04, 2020, 03:31:50 pm »
You have to use parenthesis in this case:
if (Key in ['0'..'9']) or (Key = '') then
Logged
Dan3468298
Full Member
Posts: 131
Re: Error: Operator is not overloaded?
«
Reply #2 on:
August 04, 2020, 04:10:27 pm »
I had tried that too but it must have been an early morning brain fart typo. Thanks for the wake up!
Logged
MacOS 10.15.5/Lazarus 2.0.10 Build 2020-07-07
Print
Pages: [
1
]
« previous
next »
Lazarus
»
Forum
»
Programming
»
General
»
Error: Operator is not overloaded?
TinyPortal
© 2005-2018