分析编译错误：/home/shz/Project/appHD
Qt6/parammanager.cpp
:9
6: error
: no match for ‘operator==’
(operand types are ‘const ParamMetaData’ and ‘const T’ {aka ‘const ParamMetaData’}
)
In file included from ../../
Qt6/
6.7.3/gcc_
64/include/
QtCore/QMap
:1,
from ../appHD
Qt6/parammanager.h
:5,
from ../appHD
Qt6/parammanager.cpp
:1
:
../../
Qt6/
6.7.3/gcc_
64/include/
QtCore/qmap.h
: In instantiation of ‘QMapData<AMap>
::valueIsEqualTo
(const T&
) [with AMap = std
::map<QString, ParamMetaData, std
::less<QString>, std
::allocator<std
::pair<const QString, ParamMetaData> > >; QMapData<AMap>
::T = ParamMetaData]
::<lambda
(const auto
:29&
)> [with auto
:29 = std
::pair<const QString, ParamMetaData>]’
:
/usr/include/c++/9/bits/predefined_ops.h
:283
:11
: required from ‘bool __gnu_cxx
::__ops
::_Iter_pred<_Predicate>
::operator
()(_Iterator
) [with _Iterator = std
::_Rb_tree_const_iterator<std
::pair<const QString, ParamMetaData> >; _Predicate = QMapData<AMap>
::valueIsEqualTo
(const T&
) [with AMap = std
::map<QString, ParamMetaData, std
::less<QString>, std
::allocator<std
::pair<const QString, ParamMetaData> > >; QMapData<AMap>
::T = ParamMetaData]
::<lambda
(const auto
:29&
)>]’
/usr/include/c++/9/bits/stl_algo.h
:104
:42
: required from ‘_InputIterator std
::__find_if
(_InputIterator, _InputIterator, _Predicate, std
::input_iterator_tag
) [with _InputIterator = std
::_Rb_tree_const_iterator<std
::pair<const QString, ParamMetaData> >; _Predicate = __gnu_cxx
::__ops
::_Iter_pred<QMapData<AMap>
::valueIsEqualTo
(const T&
) [with AMap = std
::map<QString, ParamMetaData, std
::less<QString>, std
::allocator<std
::pair<const QString, ParamMetaData> > >; QMapData<AMap>
::T = ParamMetaData]
::<lambda
(const auto
:29&
)> >]’
/usr/include/c++/9/bits/stl_algo.h
:1
61
:23
: required from ‘_Iterator std
::__find_if
(_Iterator, _Iterator, _Predicate
) [with _Iterator = std
::_Rb_tree_const_iterator<std
::pair<const QString, ParamMetaData> >; _Predicate = __gnu_cxx
::__ops
::_Iter_pred<QMapData<AMap>
::valueIsEqualTo
(const T&
) [with AMap = std
::map<QString, ParamMetaData, std
::less<QString>, std
::allocator<std
::pair<const QString, ParamMetaData> > >; QMapData<AMap>
::T = ParamMetaData]
::<lambda
(const auto
:29&
)> >]’
/usr/include/c++/9/bits/stl_algo.h
:39
69
:28
: required from ‘_IIter std
::find_if
(_IIter, _IIter, _Predicate
) [with _IIter = std
::_Rb_tree_const_iterator<std
::pair<const QString, ParamMetaData> >; _Predicate = QMapData<AMap>
::valueIsEqualTo
(const T&
) [with AMap = std
::map<QString, ParamMetaData, std
::less<QString>, std
::allocator<std
::pair<const QString, ParamMetaData> > >; QMapData<AMap>
::T = ParamMetaData]
::<lambda
(const auto
:29&
)>]’
../../
Qt6/
6.7.3/gcc_
64/include/
QtCore/qmap.h
:83
:30
: required from ‘QMapData<AMap>
::Key QMapData<AMap>
::key(const T&, const
Key&
) const [with AMap = std
::map<QString, ParamMetaData, std
::less<QString>, std
::allocator<std
::pair<const QString, ParamMetaData> > >; QMapData<AMap>
::Key = QString; QMapData<AMap>
::T = ParamMetaData]’
../../
Qt6/
6.7.3/gcc_
64/include/
QtCore/qmap.h
:353
:40
: required from ‘
Key QMap<
Key, T>
::key(const T&, const
Key&
) const [with
Key = QString; T = ParamMetaData]’
../appHD
Qt6/parammanager.cpp
:9
6:43
: required from here
../../
Qt6/
6.7.3/gcc_
64/include/
QtCore/qmap.h
:78
:58
: error
: no match for ‘operator==’
(operand types are ‘const ParamMetaData’ and ‘const T’ {aka ‘const ParamMetaData’}
)
78 | return [&value]
(const auto &v
) { return v.second == value; };
| ~~~~~~~~~^~~~~~~~
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