request for unicode litteral strings like "this" and Ansi strings like 'that'

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request for unicode litteral strings like "this" and Ansi strings like 'that'

https://quality.embarcadero.com/browse/RSP-21337
https://quality.embarcadero.com/browse/RSP-21337

Comments

  1. T n T (Kryvich)September 28, 2018 at 8:31 AM

    Why not write 1-byte string literals as
    const
    AStr = AnsiString('that');
    Utf8Str = Utf8String('that');
    RBStr = RawByteString('that');

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  2. Stefan GlienkeSeptember 28, 2018 at 8:45 AM

    I think Paul's point is that the compiler under the hood produces the string literals twice. You can see that when looking into the disassembly or the binary with a hex editor.

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  3. Paul TOTHSeptember 28, 2018 at 9:27 AM

    T n T just because "hello" is easy to use and with a compiler switch it do not break compatibility

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  4. Stefan GlienkeSeptember 28, 2018 at 9:32 AM

    To elaborate a bit more: I think the implicit conversion of string literals based on their context at compiletime is the issue.

    So when I declare a const s = AnsiString('test') but assign that to a UnicodeString the compiler just turns it into a UnicodeString literal without any warning as would happen if I had a variable of type AnsiString.

    So being able to turn off that cleverness of the compiler could be a solution. I haven't thought long and deep enough about this to tell what scope such an option should be though.

    I am strictly against changing how to quote strings though.

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  5. Paul TOTHSeptember 28, 2018 at 9:40 AM

    Stefan Glienke and if the same const (like an XML or HTML template) is assigned both to an AnsiString and a UnicodeString, the template will be duplicated also.

    why are you against changing how to quote strings BTW ?

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  6. Stefan GlienkeSeptember 28, 2018 at 9:54 AM

    Because this would create an entire new category of rants and WTFs.

    Oh hey, I now cannot only say if I want zero or one based strings I can also specify via directive how I can quote them - hell no! :)

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