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https://gitlab.com/freepascal.org/fpc/source.git
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96 lines
2.0 KiB
ObjectPascal
96 lines
2.0 KiB
ObjectPascal
{%OPT=-Og}
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{ This verifies if the strings are
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correctly aligned, normally the generated assembler
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should be verified manually.
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}
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program talign2;
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{$ifdef fpc}
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{$mode objfpc}
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{$define haswidestring}
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{$ifdef go32v2}
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{$define USE_INTERNAL_UNICODE}
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{$endif}
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{$ifdef USE_INTERNAL_UNICODE}
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{$define USE_FPWIDESTRING_UNIT}
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{$define USE_UNICODEDUCET_UNIT}
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{$define USE_CPALL_UNIT}
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{$endif}
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{$else}
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{$ifndef ver70}
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{$define haswidestring}
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{$endif}
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{$endif}
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{$ifdef fpc}
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{$ifndef USE_INTERNAL_UNICODE}
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{$ifdef unix}
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uses
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{$ifdef darwin}iosxwstr{$else}cwstring{$endif};
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{$endif unix}
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{$else USE_INTERNAL_UNICODE}
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uses
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{$ifdef USE_UNICODEDUCET_UNIT}
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unicodeducet,
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{$endif}
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{$ifdef USE_FPWIDESTRING_UNIT}
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fpwidestring,
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{$endif}
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{$ifdef USE_CPALL_UNIT}
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cpall;
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{$endif}
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{$endif USE_INTERNAL_UNICODE}
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{$endif}
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{$ifdef CPUI8086}
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{ The pointer size is either 2 or 4
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depending on memory model, but
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there is no point in having better
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alignment than 2 for a pointer,
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as 4 byte pointer are in fact
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2 byte offset and 2 byte segment/selector }
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const
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pointer_alignment = 2;
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{$else}
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const
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pointer_alignment = sizeof(pointer);
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{$endif}
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procedure test(b : boolean);
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begin
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if b then exit;
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WriteLn('Error in length/alignment!!');
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halt(1);
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end;
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var
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pt: pchar;
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const
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b: byte = 0; { lets just misalign the stuff }
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p : pchar = 'simple pchar stuff';
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ansistr : ansistring = 'simple ansistring';
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{$ifdef haswidestring}
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widestr : widestring = 'simple widestring';
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{$endif}
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begin
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test(length(ansistr)=17);
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{$ifdef haswidestring}
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test(length(widestr)=17);
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{$endif}
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{ verify if the address are correctly aligned! }
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pt:=p;
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test((ptruint(pt) mod pointer_alignment)=0);
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pt:=pchar(ansistr);
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test((ptruint(pt) mod pointer_alignment)=0);
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{$ifdef haswidestring}
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pt:=pchar(widestr);
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{$ifdef FPC_WINLIKEWIDESTRING}
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test((ptruint(pt) mod 4)=0);
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{$else FPC_WINLIKEWIDESTRING}
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test((ptruint(pt) mod pointer_alignment)=0);
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{$endif FPC_WINLIKEWIDESTRING}
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{$endif}
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end.
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