deprecation of wstring_convert #90
Description
The compilation failed on my new laptop and gcc since it autodetected c++ 26(?) and some deprecated stuff that gets used is removed:
Making all in src
make[1]: Entering directory '/Users/tpi006/github/divvun/libdivvun/src'
g++ -DPACKAGE_NAME=\"libdivvun\" -DPACKAGE_TARNAME=\"libdivvun\" -DPACKAGE_VERSION=\"0.3.12-alpha\" -DPACKAGE_STRING=\"libdivvun\ 0.3.12-alpha\" -DPACKAGE_BUGREPORT=\"unhammer+apertium@mm.st\" -DPACKAGE_URL=\"https://github.com/divvun/libdivvun\" -DPACKAGE=\"libdivvun\" -DVERSION=\"0.3.12-alpha\" -DHAVE_STDIO_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_STRINGS_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_UNISTD_H=1 -DSTDC_HEADERS=1 -DHAVE_DLFCN_H=1 -DLT_OBJDIR=\".libs/\" -DHAVE_LIBPUGIXML=1 -DHAVE_CGSPELL=1 -DHAVE_LIBARCHIVE=1 -DHAVE_CHECKER=1 -DHAVE_PYTHON_H=1 -I. -DPREFIX="\"/usr/local\"" -I/opt/homebrew/include/utf8cpp/ -I/opt/homebrew/opt/libarchive/include -I/opt/homebrew/opt/icu4c@77/include -I/opt/homebrew/opt/python@3.13/Frameworks/Python.framework/Versions/3.13/include/python3.13 -I/opt/homebrew/opt/python@3.13/Frameworks/Python.framework/Versions/3.13/include/python3.13 -I/usr/local/include/hfst/ -I/opt/homebrew/Cellar/pugixml/1.15/include -g -O2 -Wall -Werror=switch -I/usr/local/include/hfst/ -I/usr/local/include/ -fstack-protector-strong -std=c++26 -MT divvun_suggest-main_suggest.o -MD -MP -MF .deps/divvun_suggest-main_suggest.Tpo -c -o divvun_suggest-main_suggest.o `test -f 'main_suggest.cpp' || echo './'`main_suggest.cpp
In file included from main_suggest.cpp:22:
In file included from ./suggest.hpp:32:
./util.hpp:87:7: error: no member named 'wstring_convert' in namespace 'std'
87 | std::wstring_convert<std::codecvt_utf8<wchar_t>> myconv;
| ~~~~~^
./util.hpp:87:28: error: no member named 'codecvt_utf8' in namespace 'std'
87 | std::wstring_convert<std::codecvt_utf8<wchar_t>> myconv;
| ~~~~~^
./util.hpp:87:48: error: expected '(' for function-style cast or type construction
87 | std::wstring_convert<std::codecvt_utf8<wchar_t>> myconv;
| ~~~~~~~^
./util.hpp:87:51: error: use of undeclared identifier 'myconv'
87 | std::wstring_convert<std::codecvt_utf8<wchar_t>> myconv;
| ^
./util.hpp:88:9: error: use of undeclared identifier 'myconv'
88 | return myconv.from_bytes(str);
| ^
./util.hpp:92:7: error: no member named 'wstring_convert' in namespace 'std'
92 | std::wstring_convert<std::codecvt_utf8<wchar_t>> myconv;
| ~~~~~^
./util.hpp:92:28: error: no member named 'codecvt_utf8' in namespace 'std'
92 | std::wstring_convert<std::codecvt_utf8<wchar_t>> myconv;
| ~~~~~^
./util.hpp:92:48: error: expected '(' for function-style cast or type construction
92 | std::wstring_convert<std::codecvt_utf8<wchar_t>> myconv;
| ~~~~~~~^
./util.hpp:92:51: error: use of undeclared identifier 'myconv'
92 | std::wstring_convert<std::codecvt_utf8<wchar_t>> myconv;
| ^
./util.hpp:93:9: error: use of undeclared identifier 'myconv'
93 | return myconv.to_bytes(str);
| ^
...
This is a compilation after removing c++ 26 for reference:
$ make
...
g++ -DPACKAGE_NAME=\"libdivvun\" -DPACKAGE_TARNAME=\"libdivvun\" -DPACKAGE_VERSION=\"0.3.12-alpha\" -DPACKAGE_STRING=\"libdivvun\ 0.3.12-alpha\" -DPACKAGE_BUGREPORT=\"unhammer+apertium@mm.st\" -DPACKAGE_URL=\"https://github.com/divvun/libdivvun\" -DPACKAGE=\"libdivvun\" -DVERSION=\"0.3.12-alpha\" -DHAVE_STDIO_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_STRINGS_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_UNISTD_H=1 -DSTDC_HEADERS=1 -DHAVE_DLFCN_H=1 -DLT_OBJDIR=\".libs/\" -DHAVE_LIBPUGIXML=1 -DHAVE_CGSPELL=1 -DHAVE_LIBARCHIVE=1 -DHAVE_CHECKER=1 -DHAVE_PYTHON_H=1 -I. -DPREFIX="\"/usr/local\"" -I/opt/homebrew/include/utf8cpp/ -I/opt/homebrew/opt/libarchive/include -I/opt/homebrew/opt/icu4c@77/include -I/opt/homebrew/opt/python@3.13/Frameworks/Python.framework/Versions/3.13/include/python3.13 -I/opt/homebrew/opt/python@3.13/Frameworks/Python.framework/Versions/3.13/include/python3.13 -I/usr/local/include/ -I/opt/homebrew/Cellar/pugixml/1.15/include -I/opt/homebrew/opt/libarchive/include -I/usr/local/include/hfst/ -I/opt/homebrew/Cellar/pugixml/1.15/include -I/usr/local/include -g -O2 -Wall -Werror=switch -I/usr/local/include/hfst/ -I/usr/local/include/ -fstack-protector-strong -std=c++23 -MT divvun_normaliser-main_normaliser.o -MD -MP -MF .deps/divvun_normaliser-main_normaliser.Tpo -c -o divvun_normaliser-main_normaliser.o `test -f 'main_normaliser.cpp' || echo './'`main_normaliser.cppIn file included from main_normaliser.cpp:22:
In file included from ./normaliser.hpp:30:
./util.hpp:87:28: warning: 'codecvt_utf8<wchar_t>' is deprecated [-Wdeprecated-declarations]
87 | std::wstring_convert<std::codecvt_utf8<wchar_t>> myconv;
| ^
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/v1/codecvt:193:28: note: 'codecvt_utf8<wchar_t>' has been explicitly marked deprecated here
193 | class _LIBCPP_TEMPLATE_VIS _LIBCPP_DEPRECATED_IN_CXX17 codecvt_utf8 : public __codecvt_utf8<_Elem> {
| ^
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/v1/__config:731:41: note: expanded from macro '_LIBCPP_DEPRECATED_IN_CXX17'
731 | # define _LIBCPP_DEPRECATED_IN_CXX17 _LIBCPP_DEPRECATED
| ^
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/v1/__config:696:49: note: expanded from macro '_LIBCPP_DEPRECATED'
696 | # define _LIBCPP_DEPRECATED __attribute__((__deprecated__))
| ^
In file included from main_normaliser.cpp:22:
In file included from ./normaliser.hpp:30:
...I am not very familiar with the code that needs to do various char formats, I usually try to avoid all wchars and wstrings in c++,