How to get the folder and file part of a complete path?

Question

I have a full path like /a/b/c/text.txt

How to get /a/b/c and text.txt using c++? Prefer to use some standard library function.

I plan to use

substring, and find_last_of

Answer 1

Use find_last_of - http://www.cplusplus.com/reference/string/string/find_last_of/

Along with substr should conjecture up a solution for you

Answer 2

You can try the following:

std::string path = "/a/b/c/text.txt";
size_t lastSlash = path.rfind("/");
if (lastSlash != std::string::npos){
    std::string filename = path.substr(lastSlash + 1);
    std::string folder = path.substr(0, lastSlash);
}

Note that this works only for forward slashes as it is.

Answer 3

Based on the duplication(stackoverflow.com/a/3071694/2082964), I think the following solve the question,

Please note , depends on you need the trailing / or not; for my question, I need, so I modified a little bit.

 // string::find_last_of
    #include <iostream>
    #include <string>
    using namespace std;

    void SplitFilename (const string& str)
    {
      size_t found;
      cout << "Splitting: " << str << endl;
      found=str.find_last_of("/\\");
      cout << " folder: " << str.substr(0,found+1) << endl;
      cout << " file: " << str.substr(found+1) << endl;
    }

    int main ()
    {
      string str1 ("/usr/bin/man");
      string str2 ("c:\\windows\\winhelp.exe");

      SplitFilename (str1);
      SplitFilename (str2);

      return 0;
    }