在函数的开始括号中预期的不合格id

Question

我不相信我遗漏任何括号或半冒号。不确定这个错误还有什么可以诚实的。有任何想法吗？

请提前原谅凌乱的笔记，但无论如何 - 我留下了一张纸条，我收到了预期的不合格ID错误

#include <iostream>
    #include <fstream>
    using namespace std;

    int binarySearch(const int [], int, int);

    const int ARRAY_SIZE = 1000;            // Array size

    int main()
    {

        int accountNumbers[ARRAY_SIZE];         // Array with 1000 elements
        double accountBalances[ARRAY_SIZE];     // Array with 1000 elements
        int count = 0;                          // Input file stream object
        ifstream inputFile;
        ofstream outputFile;

        // Open the file.
        inputFile.open("FinalNumbers.txt");
        outputFile.open("Final_Random_Accounts_Sorted_Mazzei_Chris.txt");

        // Read the numbers from the file into the array
        while (count < ARRAY_SIZE && inputFile >> accountNumbers[count] >> accountBalances[count] ) {
            count++;
        }

        inputFile.close();

        int tempAccNumber = 0;
        int tempAccBalance = 0;
        for(int j = 0; j < ARRAY_SIZE - 1 ; ++j)
            for(int i = 0; i < ARRAY_SIZE - 1; ++i)
                if (accountNumbers[i] > accountNumbers [i + 1])
                {
                    tempAccNumber = accountNumbers[i];
                    accountNumbers[i] = accountNumbers[i +1];
                    accountNumbers[i + 1] = tempAccNumber;
                    tempAccBalance = accountBalances[i];
                    accountBalances[i] = accountBalances[i + 1];
                    accountBalances[i + 1] = tempAccBalance;
                }

        // Move assorted numbers to new file
        for (int i = 0; i < ARRAY_SIZE; i++) {
            outputFile << accountNumbers[i] << endl;
            outputFile << accountBalances[i] << endl;
        }

        outputFile.close();
        cout << "done" << endl;

        int accNUM;
        int results;

        cout << "Enter an account number to be found: ";
        cin >> accNUM;

        results = binarySearch(accountNumbers, ARRAY_SIZE, accNUM);

        cout << "id is found at " << results;
    }

    int binarySearch(const int array[], int size, int value);
    // expected unqualified-id error with bracket below.
    {
        int first = 0,
            last = size - 1,
            middle,
            position = - 1;
        bool found = false;

        while (!found && first <= last) {
            middle = (first + last) / 2;
            if (array[middle] == value) {
                found = true;
                position = middle;
            }
            else if (array[middle] > value)
                last = middle - 1;
                else
                    first = middle + 1;

                    }

        return position;
    }