On 14/01/2022 15:31, Jakub Jelinek wrote:
gcc 12 snapshot has landed as the system compiler into rawhide today.
Another regression:
FAILED: test/CMakeFiles/test-regression1.dir/src/unit-regression1.cpp.o
/usr/bin/g++ -DDOCTEST_CONFIG_SUPER_FAST_ASSERTS -DJSON_DIAGNOSTICS=0
-DJSON_USE_IMPLICIT_CONVERSIONS=1
-I/builddir/build/BUILD/json-3.10.5/redhat-linux-build/include
-I/builddir/build/BUILD/json-3.10.5/test/thirdparty/doctest
-I/builddir/build/BUILD/json-3.10.5/test/thirdparty/fifo_map
-I/builddir/build/BUILD/json-3.10.5/include -O2 -flto=auto
-ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall
-Werror=format-security -Wp,-D_FORTIFY_SOURCE=2
-Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1
-fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1
-mbranch-protection=standard -fasynchronous-unwind-tables
-fstack-clash-protection -Wno-deprecated -Wno-float-equal
-Wno-deprecated-declarations -MD -MT
test/CMakeFiles/test-regression1.dir/src/unit-regression1.cpp.o -MF
test/CMakeFiles/test-regression1.dir/src/unit-regression1.cpp.o.d -o
test/CMakeFiles/test-regression1.dir/src/unit-regression1.cpp.o -c
/builddir/build/BUILD/json-3.10.5/test/src/unit-regression1.cpp
/builddir/build/BUILD/json-3.10.5/test/src/unit-regression1.cpp: In
function 'void DOCTEST_ANON_FUNC_2()':
/builddir/build/BUILD/json-3.10.5/test/src/unit-regression1.cpp:392:22:
error: ambiguous overload for 'operator=' (operand types are
'std::string' {aka 'std::__cxx11::basic_string<char>'} and
'nlohmann::basic_json<>::value_type' {aka 'nlohmann::basic_json<>'})
392 | s2 = o["name"];
| ^
In file included from /usr/include/c++/12/string:53,
from /usr/include/c++/12/bits/locale_classes.h:40,
from /usr/include/c++/12/locale:39,
from
/builddir/build/BUILD/json-3.10.5/test/src/unit-regression1.cpp:33:
/usr/include/c++/12/bits/basic_string.h:733:21: note: candidate:
'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&
std::__cxx11::basic_string<_CharT, _Traits,
_Alloc>::operator=(std::nullptr_t) [with _CharT = char; _Traits =
std::char_traits<char>; _Alloc = std::allocator<char>; std::nullptr_t =
std::nullptr_t]' (deleted)
733 | basic_string& operator=(nullptr_t) = delete;
| ^~~~~~~~
/usr/include/c++/12/bits/basic_string.h:801:7: note: candidate:
'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&
std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator=(const
std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT =
char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
801 | operator=(const basic_string& __str)
| ^~~~~~~~
/usr/include/c++/12/bits/basic_string.h:842:7: note: candidate:
'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&
std::__cxx11::basic_string<_CharT, _Traits,
_Alloc>::operator=(std::__cxx11::basic_string<_CharT, _Traits,
_Alloc>&&) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc
= std::allocator<char>]'
842 | operator=(basic_string&& __str)
| ^~~~~~~~
In file included from
/builddir/build/BUILD/json-3.10.5/test/thirdparty/doctest/doctest_compatibility.h:6,
from
/builddir/build/BUILD/json-3.10.5/test/src/unit-regression1.cpp:30:
/builddir/build/BUILD/json-3.10.5/test/src/unit-regression1.cpp: In
lambda function:
/builddir/build/BUILD/json-3.10.5/test/src/unit-regression1.cpp:398:37:
error: ambiguous overload for 'operator=' (operand types are
'std::string' {aka 'std::__cxx11::basic_string<char>'} and
'nlohmann::basic_json<>::value_type' {aka 'nlohmann::basic_json<>'})
398 | CHECK_THROWS_AS(s2 = o["int"], json::type_error);
--
Sincerely,
Vitaly Zaitsev (vitaly@xxxxxxxxxxxxxx)
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