Difference between revisions of "Talk:Character and string types"

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(false statement in "Array_of_Char" ?)
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::: Thanks for your positive feedback. In fact, it is ANSI. Although the official Free Pascal documentation states that a char contains an ASCII character, is is stored as a byte to use extended ASCII or ANSI.
 
::: Thanks for your positive feedback. In fact, it is ANSI. Although the official Free Pascal documentation states that a char contains an ASCII character, is is stored as a byte to use extended ASCII or ANSI.
 
::: --[[User:Jwdietrich|Jwdietrich]] 16:55, 28 December 2013 (CET)
 
::: --[[User:Jwdietrich|Jwdietrich]] 16:55, 28 December 2013 (CET)
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 +
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Is the sentence in [[Character_and_string_types#Array_of_Char]], ''delivers: a b c d #0  since arrays are filled with null-bytes in Free Pascal'' correct?!
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I've tested (Lazarus 1.2.2 r44758 FPC 2.6.4 i386-win32-win32/win64 and Lazarus 1.3 r45097M FPC 2.7.1 i386-win32-win32/win64 on Win7)
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<source>
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procedure TForm1.Button1Click(Sender: TObject);
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type
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  TOldString4 = array[0..4] of char;
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var
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  aOldString4: TOldString4;
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begin
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  aOldString4[0] := 'a';
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  aOldString4[1] := 'b';
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  aOldString4[2] := 'c';
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  aOldString4[3] := 'd';
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  writeln('['+aOldString4[4]+']');
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  Caption:=IntToStr(ord(aOldString4[4]));
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end;
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</source>
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I got different results, but not #0 for ''aOldString4[4]''. So, do I have to update the facts or do I missunderstood the statement?
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 +
Thanks --[[User:Michl|Michl]] 23:10, 1 June 2014 (CEST)

Revision as of 23:10, 1 June 2014

Doesn't ANSIChar contain an ANSI character instead of ASCII? I.e. it is codepage dependent but can contain byte values 0..255?

--BigChimp 15:28, 28 December 2013 (CET)

This is the information of the official FPC documentation. I will do additional research.
--Jwdietrich 15:33, 28 December 2013 (CET)
Yes, I suspect the official FPC documentation is wrong/incomplete ;)
BTW: thanks for writing this page - it's very helpful!
--BigChimp 16:53, 28 December 2013 (CET)
Thanks for your positive feedback. In fact, it is ANSI. Although the official Free Pascal documentation states that a char contains an ASCII character, is is stored as a byte to use extended ASCII or ANSI.
--Jwdietrich 16:55, 28 December 2013 (CET)


Is the sentence in Character_and_string_types#Array_of_Char, delivers: a b c d #0 since arrays are filled with null-bytes in Free Pascal correct?!

I've tested (Lazarus 1.2.2 r44758 FPC 2.6.4 i386-win32-win32/win64 and Lazarus 1.3 r45097M FPC 2.7.1 i386-win32-win32/win64 on Win7) 

procedure TForm1.Button1Click(Sender: TObject);
type
  TOldString4 = array[0..4] of char;
var
  aOldString4: TOldString4;
begin
  aOldString4[0] := 'a';
  aOldString4[1] := 'b';
  aOldString4[2] := 'c';
  aOldString4[3] := 'd';
  writeln('['+aOldString4[4]+']');
  Caption:=IntToStr(ord(aOldString4[4]));
end;

I got different results, but not #0 for aOldString4[4]. So, do I have to update the facts or do I missunderstood the statement?

Thanks --Michl 23:10, 1 June 2014 (CEST)

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