[Bug c++/80243] c++ doesn't allow function to return a struct (or object?) - same thing

["jmichae3 at yahoo dot com" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80243

--- Comment #8 from Jim Michaels <jmichae3 at yahoo dot com> ---
you are right, that code does work, my example needed debugging.
so if I can return a struct here, why not in my other code, unless gcc is
confused somehow?
alas, I cannot supply source or .ii files because the library cannot be under
the GNU license.

here's some fun free example code, and yeah, it works too.
#include <iostream>
#include <string>
#include <initializer_list>
#include <vector>
typedef struct {std::string s;int i;} Structsb;
typedef std::vector<Structsb> VStructsb;
VStructsb files={{"abcd",1},{"efgh",2}};
VStructsb& fn(std::string s1, int i1) {//can be with or without &, & faster
        files.push_back({s1,i1});
    return files;
}
int main() {
        std::cout<<fn("string",1)[1].s<<files[1].i<<std::endl;
        return files[0].i;
}

you don't have to debug my code for me. but the compiler is throwing loads of
useless error messages (which I can wade through), but it's not helping me find
where things went wrong. I am stuck with no compilers that work.
I have waited a long time for something that works. how do I get a working
compiler?

Using built-in specs.
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-I/c/mingw620/prerequisites/x86_64-w64-mingw32-static/include' CPPFLAGS=
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gcc version 6.2.0 (x86_64-win32-sjlj-rev1, Built by MinGW-W64 project) 
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C:/x86_64-6.2.0-release-win32-sjlj-rt_v5-rev1/mingw64/bin/../libexec/gcc/x86_64-w64-mingw32/6.2.0/cc1plus.exe
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ignoring duplicate directory
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#include "..." search starts here:
#include <...> search starts here:

C:/x86_64-6.2.0-release-win32-sjlj-rt_v5-rev1/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.2.0/include/c++

C:/x86_64-6.2.0-release-win32-sjlj-rt_v5-rev1/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.2.0/include/c++/x86_64-w64-mingw32

C:/x86_64-6.2.0-release-win32-sjlj-rt_v5-rev1/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.2.0/include/c++/backward

C:/x86_64-6.2.0-release-win32-sjlj-rt_v5-rev1/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.2.0/include

C:/x86_64-6.2.0-release-win32-sjlj-rt_v5-rev1/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.2.0/include-fixed

C:/x86_64-6.2.0-release-win32-sjlj-rt_v5-rev1/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.2.0/../../../../x86_64-w64-mingw32/include
End of search list.
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C:/x86_64-6.2.0-release-win32-sjlj-rt_v5-rev1/mingw64/bin/../libexec/gcc/x86_64-w64-mingw32/6.2.0/cc1plus.exe
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whatever happened to friend functions for iostreams and fstreams additional
user functionality?