目前，我在尝试在vector. 我定义了一个vector, tests, 集来包含我自己的结构Test。它包含两个变量，one和two。两者都是 的实例Test。
Test不多，它只包含一个int和char。
我定义了一个宏，用于查找对象的实例是否在给定中vector。
当我尝试编译我的代码时，会导致此错误：
In file included from /usr/local/Cellar/gcc/10.2.0/include/c++/10.2.0/bits/stl_algobase.h:71,
from /usr/local/Cellar/gcc/10.2.0/include/c++/10.2.0/bits/char_traits.h:39,
from /usr/local/Cellar/gcc/10.2.0/include/c++/10.2.0/ios:40,
from /usr/local/Cellar/gcc/10.2.0/include/c++/10.2.0/ostream:38,
from /usr/local/Cellar/gcc/10.2.0/include/c++/10.2.0/iostream:39,
from test.cpp:1:
/usr/local/Cellar/gcc/10.2.0/include/c++/10.2.0/bits/predefined_ops.h: In instantiation of 'bool __gnu_cxx::__ops::_Iter_equals_val<_Value>::operator()(_Iterator) [with _Iterator = __gnu_cxx::__normal_iterator<Test*, std::vector<Test> >; _Value = const Test]':
/usr/local/Cellar/gcc/10.2.0/include/c++/10.2.0/bits/stl_algobase.h:1932:14: required from '_RandomAccessIterator std::__find_if(_RandomAccessIterator, _RandomAccessIterator, _Predicate, std::random_access_iterator_tag) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<Test*, std::vector<Test> >; _Predicate = __gnu_cxx::__ops::_Iter_equals_val<const Test>]'
/usr/local/Cellar/gcc/10.2.0/include/c++/10.2.0/bits/stl_algobase.h:1977:23: required from …