如何使用 c++ 98

问题描述

下面是一段代码,我试图从提供的目录路径中找到具有匹配模式的文件

期望是列出所有模式匹配的文件, 例如在 "/usr/local" 路径下,存在以下文件 abc.txt axy.txt bcd.txt azz.txt bby.txt

使用模式匹配代码,我期待以下输出

       abc.txt
       axy.txt
       azz.txt
#include <glob.h> 
#include <string.h> 
#include <vector>
#include <stdexcept>
#include <string>
#include <sstream>
#include <iostream>
    
    using namespace std;
    vector<string> glob(const string& pattern) {
    
        // glob struct resides on the stack
        glob_t glob_result;
        memset(&glob_result,sizeof(glob_result));
    
        // do the glob operation
        //int return_value = glob(pattern.c_str(),globerr,&glob_result);
       int return_value = glob(pattern.c_str(),GLOB_TILDE,NULL,&glob_result);
        if(return_value != 0) {
            globfree(&glob_result);
            stringstream ss;
            ss << "glob() Failed with return_value " << return_value << endl;
            throw std::runtime_error(ss.str());
        }
    
       // collect all the filenames into a std::list<std::string>
        vector<string> filenames;
        for(size_t i = 0; i < glob_result.gl_pathc; ++i) {
            filenames.push_back(string(glob_result.gl_pathv[i]));
        }
    
        // cleanup
        globfree(&glob_result);
    
        // done
        return filenames;
    }

    int main(int argc,char **argv) {
        vector<string> res;
        res= glob("a");
        return 0;
      }

解决方法

正如评论中提到的,您只会匹配一个完全命名为 namespace DailyQuotes { /// <summary> /// Interaction logic for MainWindow.xaml /// </summary> public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); DailyQuote daily = new DailyQuote(); txtQuotee.Text = daily.Quoteee; txtPeriod.Text = daily.GetPeriod(); txtQuote.Text = daily.DisplayQuote(); txtTime.Text = daily.Time.ToString("h:mm tt"); } } } 的文件,当您不应该匹配并抛出一个您没有捕获的异常时,您 a

globfree