Subj : Re: New warnings on todays build
To   : Eugene Subbotin
From : Wilfred van Velzen
Date : Tue Sep 15 2026 10:17 am

Hi Eugene,

On 2026-09-14 20:15:32, you wrote to me:

 ES> All three are cosmetic and pre-date the unicode branch. In gs_max3.h
 ES> the packed attribute sits after the typedef name, so it applies to the
 ES> name and every compiler drops it (gcc 15 and clang say the same). The
 ES> enum is held at 16 bits by the rsvd=32766 member anyway.

 ES> The two in gs_wtr.h are the same thing twice: GroupDescRecord and
 ES> UserBaseRecord are variables of anonymous structs rather than
 ES> typedefs, which gcc 4.8 on Leap 42.1 reports as a type without linkage
 ES> and gcc 5 and later no longer do. None of them changes the binary.

Ok, thanks for the clarification.

Yesterday I also tried compiling on a more modern system with gcc 15.3.0.. The 
gs_wtr.h warnings were indeed gone, but I got this extra one. (I don't know if 
this one is from before the unicode branch)

[ 95%] Building CXX object golded3/CMakeFiles/golded.dir/geusrbse.cpp.o
~/Projects/golded-plus-utf8/golded3/geusrbse.cpp: In member function 'virtual 
void guserbase::print_line(uint, uint, bool)':
~/Projects/golded-plus-utf8/golded3/geusrbse.cpp:239:48: warning: ignoring 
return value of 'std::__cxx11::basic_string<_Char
T, _Traits, _Alloc> std::operator+(__cxx11::basic_string<_CharT, _Traits, 
_Alloc>&&, const _CharT*) [with _CharT = char; _Traits = char_traits<char>; 
_Alloc = allocator<char>]', declared with attribute 'nodiscard' 
[-Wunused-result]
  239 |             ((useraddr = "<") + entry.iaddr) + ">";
      |                                                ^~~
In file included from /usr/include/c++/15/string:56,
                 from /usr/include/c++/15/bits/locale_classes.h:42,
                 from /usr/include/c++/15/bits/ios_base.h:43,
                 from /usr/include/c++/15/ios:46,
                 from /usr/include/c++/15/bits/ostream.h:43,
                 from /usr/include/c++/15/ostream:42,
                 from /usr/include/c++/15/iostream:43,
                 from ~/Projects/golded-plus-utf8/golded3/golded.h:35,
                 from ~/Projects/golded-plus-utf8/golded3/geusrbse.cpp:29:
/usr/include/c++/15/bits/basic_string.h:3973:5: note: declared here
 3973 |     operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs,
      |     ^~~~~~~~


Bye, Wilfred.

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