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From:	"Josue Andrade Gomes (josuegomes AT gmail DOT com) [via djgpp AT delorie DOT com]" <djgpp AT delorie DOT com>
Date:	Mon, 20 Sep 2021 18:04:53 -0300
Message-ID:	<CACVaizSKBm8GK7d-=yypAVMQ7=RFUH6Cjj-1KsYyWAx6a6zAdQ@mail.gmail.com>
Subject:	Re: C++17 string_view not found
To:	djgpp AT delorie DOT com
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Em seg., 20 de set. de 2021 às 17:45, pif DOT  DOT  DOT  AT gmail DOT com
(pif0017 AT gmail DOT com) [via djgpp AT delorie DOT com] <djgpp AT delorie DOT com>
escreveu:
>
> Le samedi 18 septembre 2021 à 13:31:58 UTC+2, Josue Andrade Gomes (josuegomes AT gmail DOT com) [via djgpp AT delorie DOT com] a écrit :
> > Hi,
> >
> > Trying to build this simple program:
> >
> > #include <string>
> >
> > int main()
> > {
> > std::string s("Hello world");
> > }
> >
> > with:
> > gpp --std=c++17 -c SIMPLE.CPP
> >
> > results in error:
> > In file included from c:/djgpp/include/cxx/10/string:55,
> > from SIMPLE.CPP:1:
> > c:/djgpp/include/cxx/10/bits/basic_string.h:48:11: fatal error:
> > string_view: No such file or directory (ENOENT)
> > 48 | # include <string_view>
> > |
> > compilation terminated.
> >
> > However with:
> > gpp -c SIMPLE.CPP
> >
> > It compiles fine.
> >
> > The file DJGPP/INCLUDE/CXX/10/STRING.VIE is there.
> >
> > I have installed the following files:
> > djdev205.zip
> > bnu2351b.zip
> > gcc1030b.zip
> > gpp1030b.zip
> > mak43b.zip
> >
> > Running in a DOSBOX under Ubuntu Linux.
> >
> > Any idea?
> > josue
>
> Hi Josue,
> You are using a DOS environement without long file name suport.
> Install a tool that will give it to you on dosbox or try to use a cross compiler.
>

Thank you for the reply. I'm able to include files with long names eg:

#include <unordered_set>
#include <string_view>

int main()
{
}

Gives no error on unordered_set but gives an error on string_view.

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