C++ compilation error: reuse of parameter names is not allowed, how to solve it?

C is a common programming language. It is an efficient and reliable programming language and is widely used in various fields. When programming in C, you may encounter some common compilation errors. One of the common errors is "Reuse of parameter names is not allowed".

In C, function parameters are used to pass data. When we define a function, each parameter should have a unique name. If two or more parameters have the same name when defining a function, the compiler will report a "reuse of parameter names is not allowed" error.

For example, the following code snippet will cause the compiler to report an error:

void foo(int a, int b, int a) { // 重复定义a参数
    // 函数体
}

The compiler will give an error message similar to the following:

error: redefinition of parameter 'a'
void foo(int a, int b, int a) {
                           ^

In this case, we The code needs to be modified to avoid duplication of parameter names. If you really need to use the same name, you can use a different scope, such as defining a local variable inside a function.

For example, the following code solves the above problem:

void foo(int a, int b, int c) {
    int a = 10;

    // 函数体
}

In the above code, we define a local variable named a inside the function to avoid parameter duplication. The problem.

Another workaround is to use different names to replace duplicate parameter names. This does not affect the logic and functionality of the code, and can avoid compiler errors.

When actually writing code, we should develop good programming habits to avoid such errors. For example, in order to avoid duplication of parameter names, you can use some meaningful names, which not only improves the readability of the code, but also avoids confusion.

In short, when writing C code, we should always pay attention to the error messages given by the compiler and correct the problems in the code in time to ensure that the program can compile and run correctly. Avoiding duplication of parameter names is a very basic programming skill that requires continuous practice and improvement.

The above is the detailed content of C++ compilation error: reuse of parameter names is not allowed, how to solve it?. For more information, please follow other related articles on the PHP Chinese website!