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Re: static constants are not local to the file they're defined.

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Am 01.03.12 15:51, schrieb Luca Cerone:
> Thanks for your replies.
> Apparently I made something wrong before because creating
> a minimal example to post here I could use the declared constant only
> in mylib.cpp.
>
> What I don't get though is: why should I declare it static?
> If I declare a simple const double variable I get the same a variable
> that is only valid in mylib.cpp and not in the other files.

Invisible to cpp files, but not invisible to the linker. With a usual 
const variable, all that neds to be done by another cpp file is to do

extern const double L_COS;

to access it. If L_COS is declared static, it can not be accessed from 
outside. Additionally, you could have multiple different L_COS variables 
in different translation units (cpp files)

	Christian

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Thread

static constants are not local to the file they're defined. Luca Cerone <luca.cerone@gmail.com> - 2012-03-01 00:28 -0800
  Re: static constants are not local to the file they're defined. Robert Wessel <robertwessel2@yahoo.com> - 2012-03-01 02:55 -0600
  Re: static constants are not local to the file they're defined. Geoff <geoff@invalid.invalid> - 2012-03-01 01:25 -0800
  Re: static constants are not local to the file they're defined. Luca Cerone <luca.cerone@gmail.com> - 2012-03-01 06:51 -0800
    Re: static constants are not local to the file they're defined. Christian Gollwitzer <auriocus@gmx.de> - 2012-03-01 19:21 +0100
    Re: static constants are not local to the file they're defined. Robert Wessel <robertwessel2@yahoo.com> - 2012-03-01 12:21 -0600
      Re: static constants are not local to the file they're defined. Luca Cerone <luca.cerone@gmail.com> - 2012-03-02 00:56 -0800
        Re: static constants are not local to the file they're defined. Robert Wessel <robertwessel2@yahoo.com> - 2012-03-02 03:53 -0600
          Re: static constants are not local to the file they're defined. Luca Cerone <luca.cerone@gmail.com> - 2012-03-02 02:42 -0800

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