search inside files inside file

[GTXEhUp4]

hello i am trying to make a program for specify extension finder but i have some issue how can i search inside files inside file like i have a A folder in this folder have B,C,D,E,F folders, B folder has a txt folder how can i see that ?

//heres my code


#include <iostream>
#include <dirent.h>
#include <sys/types.h>
using namespace std;
int main(void) {
DIR *dir;
struct dirent *en;
dir = opendir("C:\\Users\\BATU\\Desktop\\bestas\\deneme\\A"); //open all directory
if (dir) {
while ((en = readdir(dir)) != NULL) {
cout<<" \n"<<en->d_name; //print all directory name
}

closedir(dir); //close all directory
}
return(0);
}

[Peter87]

You probably want to use recursion.

[JLBorges]

Use the standard filesystem library. https://en.cppreference.com/w/cpp/filesystem

For example:

#include <iostream> 
#include <filesystem>

void list_directories( const std::filesystem::path path_to_dir )
{
	if( std::filesystem::is_directory(path_to_dir) )
    	    for( const auto& entry : std::filesystem::recursive_directory_iterator(path_to_dir) )
    		if( entry.is_directory() ) std::cout << entry.path() << '\n' ;
}

int main()
{
	list_directories( "/tmp" ) ;
}

http://coliru.stacked-crooked.com/a/ab6bb9ddc26dfca5

[GTXEhUp4]

#include<filesystem> doesn't work

[thmm]

What compiler / IDE do you use ?

#include<filesystem> requires C++17

[George P]

baduymus wrote:

#include<filesystem> doesn't work

This isn't your first go-around with <filesystem> and the need to explicitly set your Visual Studio 2022's use of the C++ language standard to at least C++17. Preferably C++20 since that is at this time the current standard.

https://cplusplus.com/forum/beginner/283668/#msg1228181

I'm going to remind you again:

LEARN to use code tags, they make reading and commenting on source code MUCH easier.

http://www.cplusplus.com/articles/jEywvCM9/
http://www.cplusplus.com/articles/z13hAqkS/

HINT: you can edit your post and add code tags.

Some formatting & indentation would not hurt either

We are trying to help you, but you need to make the effort of understanding and doing what we tell you.