veinin / cpp-primer-5th-edition Goto Github PK

你好，我测试你代码的时候，有一个头文件7_32.h一直编译不通过，我换了两个编译器都不行，下面是一些错误信息，请你看一下有没有解决方案？谢谢。

我的操作系统是：
版本 Windows 10 专业工作站版
版本号 22H2
安装日期 ‎2023/‎2/‎20
操作系统内部版本 19045.2604
体验 Windows Feature Experience Pack 120.2212.4190.0
64位

----在vs 2022中报以下错误：
`Build started...
1>------ Build started: Project: Project2, Configuration: Debug x64 ------

1>main.cpp
1>C:\Users\Administrator\source\repos\primer5\chapter7\Project2\Project2\7_32.h(15,40): error C2027: use of undefined type 'Screen'
1>C:\Users\Administrator\source\repos\primer5\chapter7\Project2\Project2\7_32.h(7,7): message : see declaration of 'Screen'
1>C:\Users\Administrator\source\repos\primer5\chapter7\Project2\Project2\7_32.h(21,6): error C2027: use of undefined type 'Screen'
1>C:\Users\Administrator\source\repos\primer5\chapter7\Project2\Project2\7_32.h(7,7): message : see declaration of 'Screen'
1>C:\Users\Administrator\source\repos\primer5\chapter7\Project2\Project2\7_32.h(21,31): error C2027: use of undefined type 'Screen'
1>C:\Users\Administrator\source\repos\primer5\chapter7\Project2\Project2\7_32.h(7,7): message : see declaration of 'Screen'
1>C:\Users\Administrator\source\repos\primer5\chapter7\Project2\Project2\7_32.h(21,42): error C2027: use of undefined type 'Screen'
1>C:\Users\Administrator\source\repos\primer5\chapter7\Project2\Project2\7_32.h(7,7): message : see declaration of 'Screen'
1>C:\Users\Administrator\source\repos\primer5\chapter7\Project2\Project2\7_32.h(21,29): error C2440: '': cannot convert from 'char' to 'std::string'
1>C:\Users\Administrator\source\repos\primer5\chapter7\Project2\Project2\7_32.h(21,29): message : No constructor could take the source type, or constructor overload resolution was ambiguous
1>Done building project "Project2.vcxproj" -- FAILED.
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
========== Build started at 10:50 AM and took 01.120 seconds ==========`

-----在Clion中报以下错误：
注：Clion使用的标准是C11，项目名是untitled2，编译器配置如下：

`====================[ Build | untitled2 | Debug ]===============================

"C:\Program Files\JetBrains\CLion 2022.3.3\bin\cmake\win\x64\bin\cmake.exe" --build C:\Users\Administrator\CLionProjects\untitled2\cmake-build-debug --target untitled2 -j 12
[1/2] Building CXX object CMakeFiles/untitled2.dir/main.cpp.obj
FAILED: CMakeFiles/untitled2.dir/main.cpp.obj
C:\PROGRA1\JETBRA1\CLION2~1.3\bin\mingw\bin\G__~1.EXE -g -fdiagnostics-color=always -std=gnu++11 -MD -MT CMakeFiles/untitled2.dir/main.cpp.obj -MF CMakeFiles\untitled2.dir\main.cpp.obj.d -o CMakeFiles/untitled2.dir/main.cpp.obj -c C:/Users/Administrator/CLionProjects/untitled2/main.cpp
In file included from C:/Users/Administrator/CLionProjects/untitled2/main.cpp:2:
C:/Users/Administrator/CLionProjects/untitled2/7_32.h:15:51: error: invalid use of incomplete type 'class Screen'
15 | std::vector screens{Screen(24, 80, ' ')};
| ^
C:/Users/Administrator/CLionProjects/untitled2/7_32.h:7:7: note: forward declaration of 'class Screen'
7 | class Screen;
| ^~~~~~
C:/Users/Administrator/CLionProjects/untitled2/7_32.h:15:52: error: could not convert '{}' from '' to 'std::vector'
15 | std::vector screens{Screen(24, 80, ' ')};
| ^
| |
|
C:/Users/Administrator/CLionProjects/untitled2/7_32.h: In member function 'void Window_mng::clear(Window_mng::ScreenIndex)':
C:/Users/Administrator/CLionProjects/untitled2/7_32.h:21:5: error: invalid use of incomplete type 'class Screen'
21 | s.contents = std::string(s.height * s.width, ' ');
| ^
C:/Users/Administrator/CLionProjects/untitled2/7_32.h:7:7: note: forward declaration of 'class Screen'
7 | class Screen;
| ^~~~~~
C:/Users/Administrator/CLionProjects/untitled2/7_32.h:21:30: error: invalid use of incomplete type 'class Screen'
21 | s.contents = std::string(s.height * s.width, ' ');
| ^
C:/Users/Administrator/CLionProjects/untitled2/7_32.h:7:7: note: forward declaration of 'class Screen'
7 | class Screen;
| ^~~~~~
C:/Users/Administrator/CLionProjects/untitled2/7_32.h:21:41: error: invalid use of incomplete type 'class Screen'
21 | s.contents = std::string(s.height * s.width, ' ');
| ^
C:/Users/Administrator/CLionProjects/untitled2/7_32.h:7:7: note: forward declaration of 'class Screen'
7 | class Screen;
| ^~~~~~
ninja: build stopped: subcommand failed.
`