C++ 编译错误

Question

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

int main()
{
    ifstream inputFile;
    string example;
    int numbers,
    totalNumbers = 0;

    // Prompt user to input name of the file to open
    cout << "Please enter the name of the program" << endl;
    cin >> example;

    // Open the input file that is assigned to the variable 'example'
    inputFile.open(example.c_str());

    // If the file successfully opened, process it
    if(inputFile)
    {
        // Loop until the EOF is reached
        while(inputFile >> numbers) // If a value was read
        {
            totalNumbers += numbers;
        }

        // Close the file
        inputFile.close(example.c_str());

        cout << totalNumbers;
    }
    else 
    {
        // Display an error message
        cout << "could not access file";
    }

    return 0;
}

错误如下：

fileAdder.cpp: 在函数‘int main()’中： fileAdder.cpp:36:40: 错误：没有匹配函数来调用‘std::basic_ifstream::close(const char*)’ inputFile.close(example.c_str()); ^ fileAdder.cpp:36:40: 注意：候选人是：在 fileAdder.cpp:8:0 包含的文件中： /usr/include/c++/4.8.2/fstream:576:7: 注意：void std::basic_ifstream<_CharT, _Traits>::close() [with _CharT = char; _特质 = std::char_traits] 关（） ^ /usr/include/c++/4.8.2/fstream:576:7: 注意：候选人需要 0 个参数，提供 1 个参数

Answer 1

ifstream::close not 接受任何参数。

将第 36 行更改为 inputFile.close();

Answer 2

移除 example.c.str()

正确的说法是：

inputFile.close();

我们不需要传递参数

C++ 编译错误

C++ compile error

c++

fstream

compiler-errors

ifstream