C++语言中string类的find算法：required from here

最新推荐文章于 2024-07-15 18:04:43 发布
原创 最新推荐文章于 2024-07-15 18:04:43 发布 · 2.3k 阅读 · 0 ·
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#c++ #字符串

本文解析了在C++中使用find方法在字符串ss中查找子串ll时为何报错，指出问题在于将子串误认为字符。通过对比find与字符串成员函数的区别，强调了正确使用find的必要性。

一：

string   ss="hello hello hello hello";

string::iterator   it=find(ss.begin(),ss.end(),"ll");

会抛出错误：required  from  here

这是为什么呢？

ss是一个字符串，里面的元素是一个一个的字符！把"ll"换成字符'l'即可！

请详细阅读算法find的用法！

算法find与字符串string里边的函数find是有区别的！

个人c++ 错误记录
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参考：博客园 同勉共进 find函数的返回值是无符号整型，如果查找不到，就会返回4294967295（string::npos表示-1或4294967295） /*测试string中的find*/ #include&lt;iostream&gt; #include&lt;string&gt; using namespace std; int main() { //测试size...
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头一次碰到g++出现了一个很奇怪的警告，输出信息大概是 : In instantiation of …required from here …warning 改来改去改不掉，最终发现是因为构造函数初始化列表没有按照类内声明变量的顺序来写，比如 class A { public: A(int a, char b) :m_b(b), m_a(a) { } // warning private: int m_a; char m_b; } // 改成下面这样就没..
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14 C:\Users\admin\Documents\未命名5.cpp [Warning] ignoring '#pragma comment ' [-Wunknown-pragmas] C:\Users\admin\Documents\未命名5.cpp In member function 'void Snake::Move(bool)': 64 16 C:\Users\admin\Documents\未命名5.cpp [Warning] enumeration value 'STOP' not handled in switch [-Wswitch] C:\Users\admin\Documents\未命名5.cpp In member function 'bool Snake::Contains(const Point&) const': 76 29 C:\Users\admin\Documents\未命名5.cpp [Error] 'const class std::queue<Point>' has no member named 'begin' 76 49 C:\Users\admin\Documents\未命名5.cpp [Error] 'const class std::queue<Point>' has no member named 'end' C:\Users\admin\Documents\未命名5.cpp In constructor 'Game::Game(const string&)': 95 12 C:\Users\admin\Documents\未命名5.cpp [Warning] 'Game::role' will be initialized after [-Wreorder] 94 10 C:\Users\admin\Documents\未命名5.cpp [Warning] 'bool Game::running' [-Wreorder] 98 5 C:\Users\admin\Documents\未命名5.cpp [Warning] when initialized here [-Wreorder] C:\Users\admin\Documents\未命名5.cpp In member function 'void Game::UpdateMap()': 131 31 C:\Users\admin\Documents\未命名5.cpp [Error] no matching function for call to 'begin(std::queue<Point>&)' 39 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/algorithmfwd.h In file included from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/algorithmfwd.h 60 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/stl_algo.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/stl_algo.h 52 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string 40 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h 41 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h 42 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios 38 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream 39 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream 3 C:\Users\admin\Documents\未命名5.cpp from C:\Users\admin\Documents\未命名5.cpp 90 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/initializer_list [Note] candidate: 'template<class _Tp> constexpr const _Tp* std::begin(std::initializer_list<_Tp>)' 90 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/initializer_list [Note] template argument deduction/substitution failed: 131 31 C:\Users\admin\Documents\未命名5.cpp [Note] 'std::queue<Point>' is not derived from 'std::initializer_list<_Tp>' 54 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string In file included from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string 40 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h 41 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h 42 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios 38 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream 39 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream 3 C:\Users\admin\Documents\未命名5.cpp from C:\Users\admin\Documents\未命名5.cpp 51 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] candidate: 'template<class _Container> constexpr decltype (__cont.begin()) std::begin(_Container&)' 51 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] template argument deduction/substitution failed: C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h In substitution of 'template<class _Container> constexpr decltype (__cont.begin()) std::begin(_Container&) [with _Container = std::queue<Point>]': 131 31 C:\Users\admin\Documents\未命名5.cpp required from here 51 50 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Error] 'class std::queue<Point>' has no member named 'begin' 61 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] candidate: 'template<class _Container> constexpr decltype (__cont.begin()) std::begin(const _Container&)' 61 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] template argument deduction/substitution failed: C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h In substitution of 'template<class _Container> constexpr decltype (__cont.begin()) std::begin(const _Container&) [with _Container = std::queue<Point>]': 131 31 C:\Users\admin\Documents\未命名5.cpp required from here 61 56 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Error] 'const class std::queue<Point>' has no member named 'begin' 90 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] candidate: 'template<class _Tp, unsigned int _Nm> constexpr _Tp* std::begin(_Tp (&)[_Nm])' 90 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] template argument deduction/substitution failed: 131 31 C:\Users\admin\Documents\未命名5.cpp [Note] mismatched types '_Tp [_Nm]' and 'std::queue<Point>' 54 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string In file included from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string 40 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h 41 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h 42 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios 38 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream 39 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream 3 C:\Users\admin\Documents\未命名5.cpp from C:\Users\admin\Documents\未命名5.cpp 107 31 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] candidate: 'template<class _Tp> _Tp* std::begin(std::valarray<_Tp>&)' 107 31 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] template argument deduction/substitution failed: 131 31 C:\Users\admin\Documents\未命名5.cpp [Note] 'std::queue<Point>' is not derived from 'std::valarray<_Tp>' 54 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string In file included from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string 40 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h 41 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h 42 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios 38 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream 39 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream 3 C:\Users\admin\Documents\未命名5.cpp from C:\Users\admin\Documents\未命名5.cpp 108 37 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] candidate: 'template<class _Tp> const _Tp* std::begin(const std::valarray<_Tp>&)' 108 37 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] template argument deduction/substitution failed: 131 31 C:\Users\admin\Documents\未命名5.cpp [Note] 'std::queue<Point>' is not derived from 'const std::valarray<_Tp>' 131 31 C:\Users\admin\Documents\未命名5.cpp [Error] no matching function for call to 'end(std::queue<Point>&)' 39 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/algorithmfwd.h In file included from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/algorithmfwd.h 60 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/stl_algo.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/stl_algo.h 52 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string 40 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h 41 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h 42 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios 38 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream 39 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream 3 C:\Users\admin\Documents\未命名5.cpp from C:\Users\admin\Documents\未命名5.cpp 101 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/initializer_list [Note] candidate: 'template<class _Tp> constexpr const _Tp* std::end(std::initializer_list<_Tp>)' 101 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/initializer_list [Note] template argument deduction/substitution failed: 131 31 C:\Users\admin\Documents\未命名5.cpp [Note] 'std::queue<Point>' is not derived from 'std::initializer_list<_Tp>' 54 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string In file included from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string 40 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h 41 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h 42 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios 38 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream 39 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream 3 C:\Users\admin\Documents\未命名5.cpp from C:\Users\admin\Documents\未命名5.cpp 71 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] candidate: 'template<class _Container> constexpr decltype (__cont.end()) std::end(_Container&)' 71 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] template argument deduction/substitution failed: C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h In substitution of 'template<class _Container> constexpr decltype (__cont.end()) std::end(_Container&) [with _Container = std::queue<Point>]': 131 31 C:\Users\admin\Documents\未命名5.cpp required from here 71 48 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Error] 'class std::queue<Point>' has no member named 'end' 81 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] candidate: 'template<class _Container> constexpr decltype (__cont.end()) std::end(const _Container&)' 81 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] template argument deduction/substitution failed: C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h In substitution of 'template<class _Container> constexpr decltype (__cont.end()) std::end(const _Container&) [with _Container = std::queue<Point>]': 131 31 C:\Users\admin\Documents\未命名5.cpp required from here 81 54 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Error] 'const class std::queue<Point>' has no member named 'end' 100 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] candidate: 'template<class _Tp, unsigned int _Nm> constexpr _Tp* std::end(_Tp (&)[_Nm])' 100 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] template argument deduction/substitution failed: 131 31 C:\Users\admin\Documents\未命名5.cpp [Note] mismatched types '_Tp [_Nm]' and 'std::queue<Point>' 54 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string In file included from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string 40 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h 41 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h 42 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios 38 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream 39 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream 3 C:\Users\admin\Documents\未命名5.cpp from C:\Users\admin\Documents\未命名5.cpp 109 31 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] candidate: 'template<class _Tp> _Tp* std::end(std::valarray<_Tp>&)' 109 31 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] template argument deduction/substitution failed: 131 31 C:\Users\admin\Documents\未命名5.cpp [Note] 'std::queue<Point>' is not derived from 'std::valarray<_Tp>' 54 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string In file included from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string 40 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h 41 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h 42 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios 38 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream 39 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream 3 C:\Users\admin\Documents\未命名5.cpp from C:\Users\admin\Documents\未命名5.cpp 110 37 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] candidate: 'template<class _Tp> const _Tp* std::end(const std::valarray<_Tp>&)' 110 37 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] template argument deduction/substitution failed: 131 31 C:\Users\admin\Documents\未命名5.cpp [Note] 'std::queue<Point>' is not derived from 'const std::valarray<_Tp>' 137 31 C:\Users\admin\Documents\未命名5.cpp [Error] no matching function for call to 'begin(std::queue<Point>&)' 39 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/algorithmfwd.h In file included from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/algorithmfwd.h 60 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/stl_algo.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/stl_algo.h 52 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string 40 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h 41 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h 42 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios 38 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream 39 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream 3 C:\Users\admin\Documents\未命名5.cpp from C:\Users\admin\Documents\未命名5.cpp 90 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/initializer_list [Note] candidate: 'template<class _Tp> constexpr const _Tp* std::begin(std::initializer_list<_Tp>)' 90 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/initializer_list [Note] template argument deduction/substitution failed: 137 31 C:\Users\admin\Documents\未命名5.cpp [Note] 'std::queue<Point>' is not derived from 'std::initializer_list<_Tp>' 54 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string In file included from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string 40 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h 41 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h 42 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios 38 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream 39 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream 3 C:\Users\admin\Documents\未命名5.cpp from C:\Users\admin\Documents\未命名5.cpp 51 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] candidate: 'template<class _Container> constexpr decltype (__cont.begin()) std::begin(_Container&)' 51 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] template argument deduction/substitution failed: C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h In substitution of 'template<class _Container> constexpr decltype (__cont.begin()) std::begin(_Container&) [with _Container = std::queue<Point>]': 137 31 C:\Users\admin\Documents\未命名5.cpp required from here 51 50 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Error] 'class std::queue<Point>' has no member named 'begin' 61 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] candidate: 'template<class _Container> constexpr decltype (__cont.begin()) std::begin(const _Container&)' 61 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] template argument deduction/substitution failed: C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h In substitution of 'template<class _Container> constexpr decltype (__cont.begin()) std::begin(const _Container&) [with _Container = std::queue<Point>]': 137 31 C:\Users\admin\Documents\未命名5.cpp required from here 61 56 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Error] 'const class std::queue<Point>' has no member named 'begin' 90 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] candidate: 'template<class _Tp, unsigned int _Nm> constexpr _Tp* std::begin(_Tp (&)[_Nm])' 90 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] template argument deduction/substitution failed: 137 31 C:\Users\admin\Documents\未命名5.cpp [Note] mismatched types '_Tp [_Nm]' and 'std::queue<Point>' 54 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string In file included from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string 40 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h 41 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h 42 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios 38 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream 39 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream 3 C:\Users\admin\Documents\未命名5.cpp from C:\Users\admin\Documents\未命名5.cpp 107 31 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] candidate: 'template<class _Tp> _Tp* std::begin(std::valarray<_Tp>&)' 107 31 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] template argument deduction/substitution failed: 137 31 C:\Users\admin\Documents\未命名5.cpp [Note] 'std::queue<Point>' is not derived from 'std::valarray<_Tp>' 54 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string In file included from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string 40 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h 41 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h 42 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios 38 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream 39 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream 3 C:\Users\admin\Documents\未命名5.cpp from C:\Users\admin\Documents\未命名5.cpp 108 37 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] candidate: 'template<class _Tp> const _Tp* std::begin(const std::valarray<_Tp>&)' 108 37 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] template argument deduction/substitution failed: 137 31 C:\Users\admin\Documents\未命名5.cpp [Note] 'std::queue<Point>' is not derived from 'const std::valarray<_Tp>' 137 31 C:\Users\admin\Documents\未命名5.cpp [Error] no matching function for call to 'end(std::queue<Point>&)' 39 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/algorithmfwd.h In file included from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/algorithmfwd.h 60 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/stl_algo.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/stl_algo.h 52 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string 40 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h 41 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h 42 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios 38 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream 39 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream 3 C:\Users\admin\Documents\未命名5.cpp from C:\Users\admin\Documents\未命名5.cpp 101 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/initializer_list [Note] candidate: 'template<class _Tp> constexpr const _Tp* std::end(std::initializer_list<_Tp>)' 101 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/initializer_list [Note] template argument deduction/substitution failed: 137 31 C:\Users\admin\Documents\未命名5.cpp [Note] 'std::queue<Point>' is not derived from 'std::initializer_list<_Tp>' 54 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string In file included from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string 40 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h 41 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h 42 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios 38 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream 39 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream 3 C:\Users\admin\Documents\未命名5.cpp from C:\Users\admin\Documents\未命名5.cpp 71 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] candidate: 'template<class _Container> constexpr decltype (__cont.end()) std::end(_Container&)' 71 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] template argument deduction/substitution failed: C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h In substitution of 'template<class _Container> constexpr decltype (__cont.end()) std::end(_Container&) [with _Container = std::queue<Point>]': 137 31 C:\Users\admin\Documents\未命名5.cpp required from here 71 48 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Error] 'class std::queue<Point>' has no member named 'end' 81 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] candidate: 'template<class _Container> constexpr decltype (__cont.end()) std::end(const _Container&)' 81 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] template argument deduction/substitution failed: C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h In substitution of 'template<class _Container> constexpr decltype (__cont.end()) std::end(const _Container&) [with _Container = std::queue<Point>]': 137 31 C:\Users\admin\Documents\未命名5.cpp required from here 81 54 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Error] 'const class std::queue<Point>' has no member named 'end' 100 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] candidate: 'template<class _Tp, unsigned int _Nm> constexpr _Tp* std::end(_Tp (&)[_Nm])' 100 5 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] template argument deduction/substitution failed: 137 31 C:\Users\admin\Documents\未命名5.cpp [Note] mismatched types '_Tp [_Nm]' and 'std::queue<Point>' 54 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string In file included from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string 40 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h 41 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h 42 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios 38 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream 39 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream 3 C:\Users\admin\Documents\未命名5.cpp from C:\Users\admin\Documents\未命名5.cpp 109 31 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] candidate: 'template<class _Tp> _Tp* std::end(std::valarray<_Tp>&)' 109 31 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] template argument deduction/substitution failed: 137 31 C:\Users\admin\Documents\未命名5.cpp [Note] 'std::queue<Point>' is not derived from 'std::valarray<_Tp>' 54 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string In file included from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/string 40 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/locale_classes.h 41 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/ios_base.h 42 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ios 38 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/ostream 39 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream from C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/iostream 3 C:\Users\admin\Documents\未命名5.cpp from C:\Users\admin\Documents\未命名5.cpp 110 37 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] candidate: 'template<class _Tp> const _Tp* std::end(const std::valarray<_Tp>&)' 110 37 C:/Program Files (x86)/Dev-Cpp/MinGW32/include/c++/10.2.0/bits/range_access.h [Note] template argument deduction/substitution failed: 137 31 C:\Users\admin\Documents\未命名5.cpp [Note] 'std::queue<Point>' is not derived from 'const std::valarray<_Tp>' C:\Users\admin\Documents\未命名5.cpp In lambda function: 198 35 C:\Users\admin\Documents\未命名5.cpp [Error] 'class std::queue<Point>' has no member named 'begin' 198 57 C:\Users\admin\Documents\未命名5.cpp [Error] 'class std::queue<Point>' has no member named 'end' C:\Users\admin\Documents\未命名5.cpp In constructor 'NetworkManager::NetworkManager(Game*, bool)': 340 11 C:\Users\admin\Documents\未命名5.cpp [Warning] 'NetworkManager::game' will be initialized after [-Wreorder] 339 10 C:\Users\admin\Documents\未命名5.cpp [Warning] 'bool NetworkManager::isServer' [-Wreorder] 343 5 C:\Users\admin\Documents\未命名5.cpp [Warning] when initialized here [-Wreorder]
最新发布
10-02
- `std::queue` 不支持 `begin()` / `end()`（不能用范围 for 循环或 STL 算法直接遍历） - 枚举值 `STOP` 在 `switch` 中未处理 - 成员变量初始化顺序警告 - `#pragma comment(lib, ...)` 在 MinGW/GCC 下不被识别 ...
||=== Build file: "no target" in "no project" (compiler: unknown) ===| D:\1.cpp||In member function 'void GradeManager::load_from_file(const string&)':| D:\1.cpp|65|error: no matching function for call to 'std::basic_ifstream<char>::basic_ifstream(const string&)'| D:\CodeBlocks\MinGW\lib\gcc\mingw32\5.1.0\include\c++\fstream|495|note: candidate: std::basic_ifstream<_CharT, _Traits>::basic_ifstream(const char*, std::ios_base::openmode) [with _CharT = char; _Traits = std::char_traits<char>; std::ios_base::openmode = std::_Ios_Openmode]| D:\CodeBlocks\MinGW\lib\gcc\mingw32\5.1.0\include\c++\fstream|495|note: no known conversion for argument 1 from 'const string {aka const std::__cxx11::basic_string<char>}' to 'const char*'| D:\CodeBlocks\MinGW\lib\gcc\mingw32\5.1.0\include\c++\fstream|481|note: candidate: std::basic_ifstream<_CharT, _Traits>::basic_ifstream() [with _CharT = char; _Traits = std::char_traits<char>]| D:\CodeBlocks\MinGW\lib\gcc\mingw32\5.1.0\include\c++\fstream|481|note: candidate expects 0 arguments, 1 provided| D:\CodeBlocks\MinGW\lib\gcc\mingw32\5.1.0\include\c++\fstream|455|note: candidate: std::basic_ifstream<char>::basic_ifstream(const std::basic_ifstream<char>&)| D:\CodeBlocks\MinGW\lib\gcc\mingw32\5.1.0\include\c++\fstream|455|note: no known conversion for argument 1 from 'const string {aka const std::__cxx11::basic_string<char>}' to 'const std::basic_ifstream<char>&'| D:\1.cpp|75|error: variable 'std::istringstream iss' has initializer but incomplete type| D:\1.cpp||In member function 'void GradeManager::save_to_file(const string&)':| D:\1.cpp|82|error: no matching function for call to 'std::basic_ofstream<char>::basic_ofstream(const string&)'| D:\CodeBlocks\MinGW\lib\gcc\mingw32\5.1.0\include\c++\fstream|697|note: candidate: std::basic_ofstream<_CharT, _Traits>::basic_ofstream(const char*, std::ios_base::openmode) [with _CharT = char; _Traits = std::char_traits<char>; std::ios_base::openmode = std::_Ios_Openmode]| D:\CodeBlocks\MinGW\lib\gcc\mingw32\5.1.0\include\c++\fstream|697|note: no known conversion for argument 1 from 'const string {aka const std::__cxx11::basic_string<char>}' to 'const char*'| D:\CodeBlocks\MinGW\lib\gcc\mingw32\5.1.0\include\c++\fstream|682|note: candidate: std::basic_ofstream<_CharT, _Traits>::basic_ofstream() [with _CharT = char; _Traits = std::char_traits<char>]| D:\CodeBlocks\MinGW\lib\gcc\mingw32\5.1.0\include\c++\fstream|682|note: candidate expects 0 arguments, 1 provided| D:\CodeBlocks\MinGW\lib\gcc\mingw32\5.1.0\include\c++\fstream|656|note: candidate: std::basic_ofstream<char>::basic_ofstream(const std::basic_ofstream<char>&)| D:\CodeBlocks\MinGW\lib\gcc\mingw32\5.1.0\include\c++\fstream|656|note: no known conversion for argument 1 from 'const string {aka const std::__cxx11::basic_string<char>}' to 'const std::basic_ofstream<char>&'| D:\1.cpp|88|warning: range-based 'for' loops only available with -std=c++11 or -std=gnu++11| D:\1.cpp|89|error: request for member 'name' in 's', which is of non-class type 'const int'| D:\1.cpp|89|error: 'grade' was not declared in this scope| D:\1.cpp||In member function 'bool GradeManager::modify_student(const string&)':| D:\1.cpp|98|warning: range-based 'for' loops only available with -std=c++11 or -std=gnu++11| D:\1.cpp|99|error: request for member 'name' in 's', which is of non-class type 'int'| D:\1.cpp|101|error: request for member 'read' in 's', which is of non-class type 'int'| D:\1.cpp||In member function 'bool GradeManager::delete_student(const string&)':| D:\1.cpp|109|error: 'it' does not name a type| D:\1.cpp|110|error: expected primary-expression before ')' token| D:\1.cpp|112|error: 'it' was not declared in this scope| D:\1.cpp||In member function 'Student_info* GradeManager::find_student(const string&)':| D:\1.cpp|120|warning: range-based 'for' loops only available with -std=c++11 or -std=gnu++11| D:\1.cpp|121|error: request for member 'name' in 's', which is of non-class type 'int'| D:\1.cpp|122|error: cannot convert 'int*' to 'Student_info*' in return| D:\1.cpp|125|error: 'nullptr' was not declared in this scope| D:\1.cpp|13|error: 'std::__cxx11::string Student_info::name' is private| D:\1.cpp|131|error: within this context| D:\1.cpp||In member function 'void GradeManager::sort_by_name()':| D:\1.cpp|132|warning: lambda expressions only available with -std=c++11 or -std=gnu++11| D:\1.cpp|132|error: no matching function for call to 'sort(std::vector<Student_info>::iterator, std::vector<Student_info>::iterator, GradeManager::sort_by_name()::<lambda(const Student_info&, const Student_info&)>)'| D:\CodeBlocks\MinGW\lib\gcc\mingw32\5.1.0\include\c++\bits\stl_algo.h|4689|note: candidate: template<class _RAIter> void std::sort(_RAIter, _RAIter)| D:\CodeBlocks\MinGW\lib\gcc\mingw32\5.1.0\include\c++\bits\stl_algo.h|4689|note: template argument deduction/substitution failed:| D:\1.cpp|132|note: candidate expects 2 arguments, 3 provided| D:\CodeBlocks\MinGW\lib\gcc\mingw32\5.1.0\include\c++\bits\stl_algo.h|4718|note: candidate: template<class _RAIter, class _Compare> void std::sort(_RAIter, _RAIter, _Compare)| D:\CodeBlocks\MinGW\lib\gcc\mingw32\5.1.0\include\c++\bits\stl_algo.h|4718|note: template argument deduction/substitution failed:| D:\1.cpp|132|required from here| D:\1.cpp|132|error: template argument for 'template<class _RAIter, class _Compare> void std::sort(_RAIter, _RAIter, _Compare)' uses local type 'GradeManager::sort_by_name()::<lambda(const Student_info&, const Student_info&)>'| D:\1.cpp|132|error: trying to instantiate 'template<class _RAIter, class _Compare> void std::sort(_RAIter, _RAIter, _Compare)'| D:\1.cpp|138|error: 'grade' was not declared in this scope| D:\1.cpp||In member function 'void GradeManager::sort_by_grade()':| D:\1.cpp|139|warning: lambda expressions only available with -std=c++11 or -std=gnu++11| D:\1.cpp|139|error: no matching function for call to 'sort(std::vector<Student_info>::iterator, std::vector<Student_info>::iterator, GradeManager::sort_by_grade()::<lambda(const Student_info&, const Student_info&)>)'| D:\CodeBlocks\MinGW\lib\gcc\mingw32\5.1.0\include\c++\bits\stl_algo.h|4689|note: candidate: template<class _RAIter> void std::sort(_RAIter, _RAIter)| D:\CodeBlocks\MinGW\lib\gcc\mingw32\5.1.0\include\c++\bits\stl_algo.h|4689|note: template argument deduction/substitution failed:| D:\1.cpp|139|note: candidate expects 2 arguments, 3 provided| D:\CodeBlocks\MinGW\lib\gcc\mingw32\5.1.0\include\c++\bits\stl_algo.h|4718|note: candidate: template<class _RAIter, class _Compare> void std::sort(_RAIter, _RAIter, _Compare)| D:\CodeBlocks\MinGW\lib\gcc\mingw32\5.1.0\include\c++\bits\stl_algo.h|4718|note: template argument deduction/substitution failed:| D:\1.cpp|139|required from here| D:\1.cpp|139|error: template argument for 'template<class _RAIter, class _Compare> void std::sort(_RAIter, _RAIter, _Compare)' uses local type 'GradeManager::sort_by_grade()::<lambda(const Student_info&, const Student_info&)>'| D:\1.cpp|139|error: trying to instantiate 'template<class _RAIter, class _Compare> void std::sort(_RAIter, _RAIter, _Compare)'| D:\1.cpp||In member function 'void GradeManager::display_all()':| D:\1.cpp|143|warning: range-based 'for' loops only available with -std=c++11 or -std=gnu++11| D:\1.cpp|144|error: request for member 'name' in 's', which is of non-class type 'const int'| D:\1.cpp|144|error: 'grade' was not declared in this scope| D:\1.cpp||In function 'int main()':| D:\1.cpp|13|error: 'std::__cxx11::string Student_info::name' is private| D:\1.cpp|182|error: within this context| D:\1.cpp|182|error: 'grade' was not declared in this scope| ||=== Build failed: 27 error(s), 8 warning(s) (0 minute(s), 1 second(s)) ===|
06-19
在 C++ 中，`ifstream` 和 `ofstream` 是用于文件输入输出的流对象，而 `string` 是标准库中的字符串类。构造函数错误通常与不正确的参数类型或未包含必要的头文件有关。以下是对问题的详细分析和解决方案。 #### 1...
C++算法与数据结构大全
wu_chang_yu的博客
06-28 1795
本文整理了各种算法与数据结构，并给出了C++实现。本文仍在不断更新中，敬请期待。 查找算法 Binary Search #include <iostream> using namespace std; int binary_search(int a[], int l, int r, int key) { while (l <= r) { int m = l + (r - l) / 2; if (key == a[m]) return m; else if (key &
^ /usr/include/c++/5/bits/unordered_map.h:111:46: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_data_precision> >, std::__detail::__is_noexcept_hash<raw_data_precision, std::hash<raw_data_precision> > > >’ typedef typename _Hashtable::key_equal key_equal; ^ /usr/include/c++/5/bits/unordered_map.h:112:51: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_data_precision> >, std::__detail::__is_noexcept_hash<raw_data_precision, std::hash<raw_data_precision> > > >’ typedef typename _Hashtable::allocator_type allocator_type; ^ /usr/include/c++/5/bits/unordered_map.h:117:45: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_data_precision> >, std::__detail::__is_noexcept_hash<raw_data_precision, std::hash<raw_data_precision> > > >’ typedef typename _Hashtable::pointer pointer; ^ /usr/include/c++/5/bits/unordered_map.h:118:50: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_data_precision> >, std::__detail::__is_noexcept_hash<raw_data_precision, std::hash<raw_data_precision> > > >’ typedef typename _Hashtable::const_pointer const_pointer; ^ /usr/include/c++/5/bits/unordered_map.h:119:47: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_data_precision> >, std::__detail::__is_noexcept_hash<raw_data_precision, std::hash<raw_data_precision> > > >’ typedef typename _Hashtable::reference reference; ^ /usr/include/c++/5/bits/unordered_map.h:120:52: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_data_precision> >, std::__detail::__is_noexcept_hash<raw_data_precision, std::hash<raw_data_precision> > > >’ typedef typename _Hashtable::const_reference const_reference; ^ /usr/include/c++/5/bits/unordered_map.h:121:46: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_data_precision> >, std::__detail::__is_noexcept_hash<raw_data_precision, std::hash<raw_data_precision> > > >’ typedef typename _Hashtable::iterator iterator; ^ /usr/include/c++/5/bits/unordered_map.h:122:51: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_data_precision> >, std::__detail::__is_noexcept_hash<raw_data_precision, std::hash<raw_data_precision> > > >’ typedef typename _Hashtable::const_iterator const_iterator; ^ /usr/include/c++/5/bits/unordered_map.h:123:51: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_data_precision> >, std::__detail::__is_noexcept_hash<raw_data_precision, std::hash<raw_data_precision> > > >’ typedef typename _Hashtable::local_iterator local_iterator; ^ /usr/include/c++/5/bits/unordered_map.h:124:57: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_data_precision> >, std::__detail::__is_noexcept_hash<raw_data_precision, std::hash<raw_data_precision> > > >’ typedef typename _Hashtable::const_local_iterator const_local_iterator; ^ /usr/include/c++/5/bits/unordered_map.h:125:47: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_data_precision> >, std::__detail::__is_noexcept_hash<raw_data_precision, std::hash<raw_data_precision> > > >’ typedef typename _Hashtable::size_type size_type; ^ /usr/include/c++/5/bits/unordered_map.h:126:52: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_data_precision> >, std::__detail::__is_noexcept_hash<raw_data_precision, std::hash<raw_data_precision> > > >’ typedef typename _Hashtable::difference_type difference_type; ^ /usr/include/c++/5/bits/unordered_map.h:280:7: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_data_precision> >, std::__detail::__is_noexcept_hash<raw_data_precision, std::hash<raw_data_precision> > > >’ operator=(initializer_list<value_type> __l) ^ /usr/include/c++/5/bits/unordered_map.h:379:2: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_data_precision> >, std::__detail::__is_noexcept_hash<raw_data_precision, std::hash<raw_data_precision> > > >’ emplace(_Args&&... __args) ^ /usr/include/c++/5/bits/unordered_map.h:432:7: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_data_precision> >, std::__detail::__is_noexcept_hash<raw_data_precision, std::hash<raw_data_precision> > > >’ insert(const value_type& __x) ^ /usr/include/c++/5/bits/unordered_map.h:439:2: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_data_precision> >, std::__detail::__is_noexcept_hash<raw_data_precision, std::hash<raw_data_precision> > > >’ insert(_Pair&& __x) ^ /usr/include/c++/5/bits/unordered_map.h:499:7: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_data_precision> >, std::__detail::__is_noexcept_hash<raw_data_precision, std::hash<raw_data_precision> > > >’ insert(initializer_list<value_type> __l) ^ /usr/include/c++/5/bits/unordered_map.h:645:7: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_data_precision> >, std::__detail::__is_noexcept_hash<raw_data_precision, std::hash<raw_data_precision> > > >’ equal_range(const key_type& __x) ^ /usr/include/c++/5/bits/unordered_map.h:649:7: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_data_precision> >, std::__detail::__is_noexcept_hash<raw_data_precision, std::hash<raw_data_precision> > > >’ equal_range(const key_type& __x) const ^ In file included from /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos/amigos_base/amigos_module_base.h:29:0, from /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos/amigos_base/amigos_module_init.h:19, from /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos_ext/modules/amigos_module_sync.cpp:19: /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos/amigos_base/amigos_module_base.h: In static member function ‘static std::__cxx11::string ss_enum_cast<raw_data_precision>::to_str(const raw_data_precision&)’: /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos/amigos_base/amigos_module_base.h:88:1: error: too many initializers for ‘const std::unordered_map<raw_data_precision, std::__cxx11::basic_string<char> >’ }); ^ /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/../common/ss_util/ss_enum_cast.hpp:38:73: note: in definition of macro ‘SS_ENUM_CAST_STR’ static const std::unordered_map<_EnumType, std::string> m = __VA_ARGS__; \ ^ /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/../common/ss_util/ss_enum_cast.hpp:40:25: error: ‘const class std::unordered_map<raw_data_precision, std::__cxx11::basic_string<char> >’ has no member named ‘find’ auto it = m.find(e); \ ^ /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos/amigos_base/amigos_module_base.h:81:1: note: in expansion of macro ‘SS_ENUM_CAST_STR’ SS_ENUM_CAST_STR(raw_data_precision , { ^ /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/../common/ss_util/ss_enum_cast.hpp:41:28: error: ‘const class std::unordered_map<raw_data_precision, std::__cxx11::basic_string<char> >’ has no member named ‘end’ return it != m.end() ? it->second : "Unknown"; \ ^ /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos/amigos_base/amigos_module_base.h:81:1: note: in expansion of macro ‘SS_ENUM_CAST_STR’ SS_ENUM_CAST_STR(raw_data_precision , { ^ In file included from /usr/include/c++/5/bits/hashtable.h:35:0, from /usr/include/c++/5/unordered_map:47, from /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos/amigos_base/amigos_module_base.h:25, from /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos/amigos_base/amigos_module_init.h:19, from /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos_ext/modules/amigos_module_sync.cpp:19: /usr/include/c++/5/bits/hashtable_policy.h: In instantiation of ‘struct std::__detail::__is_noexcept_hash<raw_video_fmt, std::hash<raw_video_fmt> >’: /usr/include/c++/5/type_traits:137:12: required from ‘struct std::__and_<std::__is_fast_hash<std::hash<raw_video_fmt> >, std::__detail::__is_noexcept_hash<raw_video_fmt, std::hash<raw_video_fmt> > >’ /usr/include/c++/5/type_traits:148:38: required from ‘struct std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_video_fmt> >, std::__detail::__is_noexcept_hash<raw_video_fmt, std::hash<raw_video_fmt> > > >’ /usr/include/c++/5/bits/unordered_map.h:100:66: required from ‘class std::unordered_map<raw_video_fmt, std::__cxx11::basic_string<char> >’ /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos/amigos_base/amigos_module_base.h:107:69: required from here /usr/include/c++/5/bits/hashtable_policy.h:85:34: error: no match for call to ‘(const std::hash<raw_video_fmt>) (const raw_video_fmt&)’ noexcept(declval<const _Hash&>()(declval<const _Key&>()))> ^ In file included from /usr/include/c++/5/bits/move.h:57:0, from /usr/include/c++/5/bits/stl_pair.h:59, from /usr/include/c++/5/bits/stl_algobase.h:64, from /usr/include/c++/5/deque:60, from /usr/include/c++/5/queue:60, from /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos/amigos_base/amigos_module_base.h:20, from /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos/amigos_base/amigos_module_init.h:19, from /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos_ext/modules/amigos_module_sync.cpp:19: /usr/include/c++/5/type_traits: In instantiation of ‘struct std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_video_fmt> >, std::__detail::__is_noexcept_hash<raw_video_fmt, std::hash<raw_video_fmt> > > >’: /usr/include/c++/5/bits/unordered_map.h:100:66: required from ‘class std::unordered_map<raw_video_fmt, std::__cxx11::basic_string<char> >’ /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos/amigos_base/amigos_module_base.h:107:69: required from here /usr/include/c++/5/type_traits:148:38: error: ‘value’ is not a member of ‘std::__and_<std::__is_fast_hash<std::hash<raw_video_fmt> >, std::__detail::__is_noexcept_hash<raw_video_fmt, std::hash<raw_video_fmt> > >’ : public integral_constant<bool, !_Pp::value> ^ In file included from /usr/include/c++/5/unordered_map:48:0, from /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos/amigos_base/amigos_module_base.h:25, from /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos/amigos_base/amigos_module_init.h:19, from /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos_ext/modules/amigos_module_sync.cpp:19: /usr/include/c++/5/bits/unordered_map.h: In instantiation of ‘class std::unordered_map<raw_video_fmt, std::__cxx11::basic_string<char> >’: /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos/amigos_base/amigos_module_base.h:107:69: required from here /usr/include/c++/5/bits/unordered_map.h:100:66: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_video_fmt> >, std::__detail::__is_noexcept_hash<raw_video_fmt, std::hash<raw_video_fmt> > > >’ typedef __umap_hashtable<_Key, _Tp, _Hash, _Pred, _Alloc> _Hashtable; ^ /usr/include/c++/5/bits/unordered_map.h:107:45: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_video_fmt> >, std::__detail::__is_noexcept_hash<raw_video_fmt, std::hash<raw_video_fmt> > > >’ typedef typename _Hashtable::key_type key_type; ^ /usr/include/c++/5/bits/unordered_map.h:108:47: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_video_fmt> >, std::__detail::__is_noexcept_hash<raw_video_fmt, std::hash<raw_video_fmt> > > >’ typedef typename _Hashtable::value_type value_type; ^ /usr/include/c++/5/bits/unordered_map.h:109:48: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_video_fmt> >, std::__detail::__is_noexcept_hash<raw_video_fmt, std::hash<raw_video_fmt> > > >’ typedef typename _Hashtable::mapped_type mapped_type; ^ /usr/include/c++/5/bits/unordered_map.h:110:43: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_video_fmt> >, std::__detail::__is_noexcept_hash<raw_video_fmt, std::hash<raw_video_fmt> > > >’ typedef typename _Hashtable::hasher hasher; ^ /usr/include/c++/5/bits/unordered_map.h:111:46: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_video_fmt> >, std::__detail::__is_noexcept_hash<raw_video_fmt, std::hash<raw_video_fmt> > > >’ typedef typename _Hashtable::key_equal key_equal; ^ /usr/include/c++/5/bits/unordered_map.h:112:51: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_video_fmt> >, std::__detail::__is_noexcept_hash<raw_video_fmt, std::hash<raw_video_fmt> > > >’ typedef typename _Hashtable::allocator_type allocator_type; ^ /usr/include/c++/5/bits/unordered_map.h:117:45: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_video_fmt> >, std::__detail::__is_noexcept_hash<raw_video_fmt, std::hash<raw_video_fmt> > > >’ typedef typename _Hashtable::pointer pointer; ^ /usr/include/c++/5/bits/unordered_map.h:118:50: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_video_fmt> >, std::__detail::__is_noexcept_hash<raw_video_fmt, std::hash<raw_video_fmt> > > >’ typedef typename _Hashtable::const_pointer const_pointer; ^ /usr/include/c++/5/bits/unordered_map.h:119:47: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_video_fmt> >, std::__detail::__is_noexcept_hash<raw_video_fmt, std::hash<raw_video_fmt> > > >’ typedef typename _Hashtable::reference reference; ^ /usr/include/c++/5/bits/unordered_map.h:120:52: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_video_fmt> >, std::__detail::__is_noexcept_hash<raw_video_fmt, std::hash<raw_video_fmt> > > >’ typedef typename _Hashtable::const_reference const_reference; ^ /usr/include/c++/5/bits/unordered_map.h:121:46: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_video_fmt> >, std::__detail::__is_noexcept_hash<raw_video_fmt, std::hash<raw_video_fmt> > > >’ typedef typename _Hashtable::iterator iterator; ^ /usr/include/c++/5/bits/unordered_map.h:122:51: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_video_fmt> >, std::__detail::__is_noexcept_hash<raw_video_fmt, std::hash<raw_video_fmt> > > >’ typedef typename _Hashtable::const_iterator const_iterator; ^ /usr/include/c++/5/bits/unordered_map.h:123:51: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_video_fmt> >, std::__detail::__is_noexcept_hash<raw_video_fmt, std::hash<raw_video_fmt> > > >’ typedef typename _Hashtable::local_iterator local_iterator; ^ /usr/include/c++/5/bits/unordered_map.h:124:57: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_video_fmt> >, std::__detail::__is_noexcept_hash<raw_video_fmt, std::hash<raw_video_fmt> > > >’ typedef typename _Hashtable::const_local_iterator const_local_iterator; ^ /usr/include/c++/5/bits/unordered_map.h:125:47: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_video_fmt> >, std::__detail::__is_noexcept_hash<raw_video_fmt, std::hash<raw_video_fmt> > > >’ typedef typename _Hashtable::size_type size_type; ^ /usr/include/c++/5/bits/unordered_map.h:126:52: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_video_fmt> >, std::__detail::__is_noexcept_hash<raw_video_fmt, std::hash<raw_video_fmt> > > >’ typedef typename _Hashtable::difference_type difference_type; ^ /usr/include/c++/5/bits/unordered_map.h:280:7: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_video_fmt> >, std::__detail::__is_noexcept_hash<raw_video_fmt, std::hash<raw_video_fmt> > > >’ operator=(initializer_list<value_type> __l) ^ /usr/include/c++/5/bits/unordered_map.h:379:2: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_video_fmt> >, std::__detail::__is_noexcept_hash<raw_video_fmt, std::hash<raw_video_fmt> > > >’ emplace(_Args&&... __args) ^ /usr/include/c++/5/bits/unordered_map.h:432:7: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_video_fmt> >, std::__detail::__is_noexcept_hash<raw_video_fmt, std::hash<raw_video_fmt> > > >’ insert(const value_type& __x) ^ /usr/include/c++/5/bits/unordered_map.h:439:2: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_video_fmt> >, std::__detail::__is_noexcept_hash<raw_video_fmt, std::hash<raw_video_fmt> > > >’ insert(_Pair&& __x) ^ /usr/include/c++/5/bits/unordered_map.h:499:7: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_video_fmt> >, std::__detail::__is_noexcept_hash<raw_video_fmt, std::hash<raw_video_fmt> > > >’ insert(initializer_list<value_type> __l) ^ /usr/include/c++/5/bits/unordered_map.h:645:7: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_video_fmt> >, std::__detail::__is_noexcept_hash<raw_video_fmt, std::hash<raw_video_fmt> > > >’ equal_range(const key_type& __x) ^ /usr/include/c++/5/bits/unordered_map.h:649:7: error: ‘value’ is not a member of ‘std::__not_<std::__and_<std::__is_fast_hash<std::hash<raw_video_fmt> >, std::__detail::__is_noexcept_hash<raw_video_fmt, std::hash<raw_video_fmt> > > >’ equal_range(const key_type& __x) const ^ In file included from /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos/amigos_base/amigos_module_init.h:19:0, from /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos_ext/modules/amigos_module_sync.cpp:19: /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos/amigos_base/amigos_module_base.h: In static member function ‘static std::__cxx11::string ss_enum_cast<raw_video_fmt>::to_str(const raw_video_fmt&)’: /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos/amigos_base/amigos_module_base.h:126:9: error: too many initializers for ‘const std::unordered_map<raw_video_fmt, std::__cxx11::basic_string<char> >’ }; ^ /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos/amigos_base/amigos_module_base.h:127:21: error: ‘const class std::unordered_map<raw_video_fmt, std::__cxx11::basic_string<char> >’ has no member named ‘find’ auto it = m.find(fmt); ^ /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos/amigos_base/amigos_module_base.h:128:24: error: ‘const class std::unordered_map<raw_video_fmt, std::__cxx11::basic_string<char> >’ has no member named ‘end’ return it != m.end() ? it->second : "Unknown"; ^ /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/build/compile.mk:114: recipe for target '/home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos_ext/modules/amigos_module_rtsp.user.x86.o' failed make[12]: *** [/home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos_ext/modules/amigos_module_rtsp.user.x86.o] Error 1 /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/build/compile.mk:114: recipe for target '/home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos_ext/modules/amigos_module_env_monitor.user.x86.o' failed make[12]: *** [/home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos_ext/modules/amigos_module_env_monitor.user.x86.o] Error 1 /home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/build/compile.mk:114: recipe for target '/home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos_ext/modules/amigos_module_sync.user.x86.o' failed make[12]: *** [/home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code/libraries/amigos_ext/modules/amigos_module_sync.user.x86.o] Error 1 make[12]: Leaving directory '/home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code' Makefile:182: recipe for target 'libraries/amigos_ext_obj_all' failed make[11]: *** [libraries/amigos_ext_obj_all] Error 2 make[11]: Leaving directory '/home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code' Makefile:143: recipe for target 'depend_internal' failed make[10]: *** [depend_internal] Error 2 make[10]: Leaving directory '/home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code' Makefile:99: recipe for target 'all' failed make[9]: *** [all] Error 2 make[9]: Leaving directory '/home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code' Makefile:167: recipe for target 'applications/mixer/app_amigos/gen_code' failed make[8]: *** [applications/mixer/app_amigos/gen_code] Error 2 make[8]: Leaving directory '/home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code' applications/mixer/app_amigos/gen_code/script.mk:41: recipe for target 'script_start' failed make[7]: *** [script_start] Error 2 make[7]: Leaving directory '/home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code' Makefile:207: recipe for target 'applications/mixer/app_amigos/gen_code_script_start' failed make[6]: *** [applications/mixer/app_amigos/gen_code_script_start] Error 2 make[6]: Leaving directory '/home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code' Makefile:99: recipe for target 'all' failed make[5]: *** [all] Error 2 make[5]: Leaving directory '/home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify/sample_code' makefile:46: recipe for target 'all' failed make[4]: *** [all] Error 2 make[4]: Leaving directory '/home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/sdk/verify' ../sdk/sdk.mk:81: recipe for target 'verify' failed make[3]: *** [verify] Error 2 make[3]: Leaving directory '/home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/project' ../sdk/sdk.mk:49: recipe for target 'sdk' failed make[2]: *** [sdk] Error 2 make[2]: Leaving directory '/home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/project' makefile:279: recipe for target 'release' failed make[1]: *** [release] Error 2 make[1]: Leaving directory '/home/tp/Project/AOV-课题/软件sdk/Iford_IMD00V5.1.1/Iford_IMD00V5.1.1/SourceCode/project' makefile:68: recipe for target 'image' failed make: *** [image] Error 2 问题在哪
09-16
用户给出的错误信息非常详细，看起来是C++代码中的模板实例化问题，特别是与`std::unordered_map`相关的错误。首先，我需要理解这些错误信息的具体含义，然后定位到可能的代码问题。 首先，错误信息中多次出现“...
查找子串方法总结
休息一下接着来的博客
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是 C++ 标准库中的一个算法，属于泛型编程的范畴。它能够在容器的任意范围内查找子序列。泛型编程的核心思想是编写代码，使其能够处理不同类型的容器和迭代器，而不依赖于具体的容器实现。是由标准库实现的，经过了优化，性能较好。实测效率高，推荐使用。
【C++】c++编译错误-- C2678 二进制“=”: 没有找到接受“_Ty”类型的左操作数的运算符(或没有可接受的转换)
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