C++錯誤之一 ：invalid initialization of non-const reference of type ‘xxx&’ from an rvalue of type ‘xxx’
1、看代碼 2、編譯結果 3、分析和解決 就拿f(a + b)來說，a+b的值會存在一個臨時變量中，當把這個臨時變量傳給f時，由於f的聲明中，參數是int&，不是常量引用，因爲c++編譯器的一個關於語義的限制。如果一個參數是以非const引用傳入，c++編譯器就有理由認爲程序員會在函數中修改這個值，並且這個被修改的引用在函數返回後要發揮作用。但如果你把一個臨時變量當作非const引
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相關文章
- 1. C++錯誤之一 ：invalid initialization of non-const reference of type ‘xxx&’ from an rvalue of type ‘xxx’
- 2. 報錯 error: invalid initialization of non-const reference of type ‘XXX &’ from an rvalue of type‘XXX‘
- 3. C++引用報錯:invalid initialization of non-const reference of type ‘std::string&’ from an rvalue of type
- 4. Cannot create class of type 'XXX'. Type 'XXX' not found.
- 5. [Mendix]CE1568The selected page xxx expects an object of type of xxx which is not available
- 6. Error: Expected resource of type xxx [ResourceType]
- 7. Received unregistered task of type ‘XXX’ Celery報錯
- 8. Spring @Resource 注入報錯 must be of type [xxx], but was actually of type [com.sun.proxy.$Proxy###]
- 9. IDEA--Could not autowire. No beans of xxx type found
- 10. @Override註解報錯，The method xxx of type xxx must override a superclass method