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27 de feb. de 2012 · 1. Also, bool data type implies true or false, while you are using incorrect case labels. – Alok Save. Feb 27, 2012 at 8:35. A bool can contain the values true and false. It does not contain the character Y, or the character N. "Just switching" y and n won't change that. – Stack Overflow is garbage.
2 de oct. de 2012 · Just as a note, my professor said adding #include student.h to my main.cpp would fix my issue. OBVIOUSLY NOT because I included it in my student.cpp. Your main() needs to know what is the the type Student to be able to create its object. So your professor is correct. Each source file is compiled separately, So when the compiler compiles main.cpp it needs to see the definition of the type ...
24 de sept. de 2014 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question.Provide details and share your research! But avoid …. Asking for help, clarification, or responding to other answers.
C++ 解决C++代码中出现的“error: use of undeclared identifier 'variable'”问题 在本文中，我们将介绍在C++代码中出现的'error: use of undeclared identifier 'variable''问题以及解决方法。这个错误通常出现在使用了未声明的变量的情况下，可能是由于拼写错误、作用域问题或者忘记包含相关头文件导致的。
可以看看在undeclared identifier前面有没有什么字母，比如上面那个例子的话它就会提示“b”undeclared identifier。 C++是C语言的继承，它既可以进行C语言的过程化程序设计，又可以进行以抽象数据类型为特点的基于对象的程序设计，还可以进行以继承和多态为特点的面向对象的程序设计。
20 de nov. de 2018 · c++ 오류 해결법 : Use of undeclared identifier '함수명'. 알고리즘/정리 및 오류 해결 방법 2018. 11. 20. 16:12. c++ 로 작업을 하다보면 분명히 함수를 만들었음에도 불구하고 함수를 호출 못하는 경우가 있다. 이때 아래와 같은 오류가 발생한다. 이러한 오류는 main 이전에 ...
23 de jul. de 2020 · 0. A possible solution is to put extern const int kNumPrograms; in the header before the class. The extern will work as a forward declaration and the problem will be solved. for example: #include <iostream>. //this act like a forward decleration (in your header) extern const int kNumPrograms; void f() {.
