用于在文件中搜索数值的C++函数

#include <iostream>
#include <fstream>
#include <string>

bool searchValueInFile(const std::string& filename, int value) {
    std::ifstream file(filename);
    if (!file.is_open()) {
        std::cout << "Failed to open file: " << filename << std::endl;
        return false;
    }

    int num;
    while (file >> num) {
        if (num == value) {
            file.close();
            return true;
        }
    }

    file.close();
    return false;
}