Qt下編譯報錯：error: 'nullptr' was not declared in this scope
問題緣由：這個nullptr並非程序定義的，而是C++11引入的關鍵字因此這個編譯器可能沒有支持C++11。c++ 解決辦法：使用nullptr時，要添加對C++11的支持，在.pro文件中添加QMAKE_CXXFLAGS += -std=c++0x便可編譯器
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相關文章
- 1. error: ‘nullptr‘ was not declared in this scope @FDDLC
- 2. 編譯錯誤：error: 'nullptr' was not declared in this scope
- 3. openvino CMake編譯錯誤 error: ‘CV_RGB’ was not declared in this scope
- 4. DEV C++中[Error] 'nullptr' was not declared in this scope
- 5. [Error] 'sort' was not declared in this scope
- 6. [Error] 'to_string' was not declared in this scope
- 7. error: 'system' was not declared in this scope
- 8. Error stoi was not declared in this scope
- 9. Codeblocks報錯——nullptr was not declared
- 10. C++ shared_ptr 編譯 error ‘shared_ptr’ was not declared in this scope修復