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what's the difference between String, string, ustring?
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Topic: what's the difference between String, string, ustring? (Read 4454 times)
afidegnum
New member
Posts: 9
what's the difference between String, string, ustring?
«
on:
September 09, 2018, 10:58:05 am »
I have been trying but can't figure out,
what's the difference between
String
,
string
and
ustring
Logged
Thaddy
Hero Member
Posts: 14200
Probably until I exterminate Putin.
Re: what's the difference between String, string, ustring?
«
Reply #1 on:
September 09, 2018, 11:31:48 am »
There is no difference between String and string or STRING. Pascal is not case sensitive.
ustring is probably a user defined string type coming from a C or c++ translation and likely to mean the Pascal widestring type. Can you show us where you found ustring?
«
Last Edit: September 09, 2018, 12:33:56 pm by Thaddy
»
Logged
Specialize a type, not a var.
MacWomble
Jr. Member
Posts: 79
Re: what's the difference between String, string, ustring?
«
Reply #2 on:
September 09, 2018, 01:58:01 pm »
ustring is e.g used here:
http://wiki.freepascal.org/fpCEF3
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Mint 19.3 Cinnamon, FPC/ Lazarus Trunk 64Bit
marcov
Administrator
Hero Member
Posts: 11383
FPC developer.
Re: what's the difference between String, string, ustring?
«
Reply #3 on:
September 09, 2018, 02:03:46 pm »
Without knowing fpcef3, I think it is just some alias of normal string types depending on ifdef, to simplify versioning. (Delphi-old, delphi-unicode and FPC/Lazarus)
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Thaddy
Hero Member
Posts: 14200
Probably until I exterminate Putin.
Re: what's the difference between String, string, ustring?
«
Reply #4 on:
September 09, 2018, 03:16:09 pm »
Quote from: MacWomble on September 09, 2018, 01:58:01 pm
ustring is e.g used here:
http://wiki.freepascal.org/fpCEF3
It is declared as:
Code: Pascal
[Select]
[+]
[-]
Type
{$IFDEF CEF_STRING_TYPE_UTF8}
ustring
=
UTF8String
;
{$ELSE}
ustring
=
UnicodeString
;
{$ENDIF}
I wonder if the declarations are correct. E.g. imho it should be widestring, not unicodestring: CEF has no knowledge about refcounted strings and this can cause problems even if they are assignment compatible.
That said: I use this package myself and it is stable.
«
Last Edit: September 09, 2018, 03:38:52 pm by Thaddy
»
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what's the difference between String, string, ustring?
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