c++ - 函数参数中的C++数组指针

Question

有人可以向我解释这些功能为何/为什么相同吗？

void doubleArray(int* values, int length)

void doubleArray(int values[], int length)

我不必为使代码仍然完全相同而更改任何内容，但是我不确定逻辑。我希望至少要更改函数中编写的内容。如果需要的话，下面是完整的代码；

  #include <iostream>

    using std::cout;
    using std::endl;

void doubleArray(int* values, int length);

int main() {

    int length = 10;
    int values[length];

    for (int i = 0; i < length; i++){
        values[i] = i;
    }

    doubleArray(values, length);

    for (int i = 0; i < length; i++) {
      cout << values[i] << endl;
   }

}

void doubleArray(int* values, int length) {
    for(int i = 0; i < length; i++){
        values[i] = values[i] * 2;
    }
}

Answer 1

从https://en.cppreference.com/w/cpp/language/function#Parameter_list:

The type of each function parameter in the parameter list is determined according to the following rules:

[..]

2) If the type is "array of T" or "array of unknown bound of T", it is replaced by the type "pointer to T"

[..]

Because of these rules, the following function declarations declare exactly the same function:

int f(char[]);
int f(char* s);
int f(char* const);
int f(char* volatile s);