get directory from file path c++

Question

What is the simplest way to get the directory that a file is in? I\'m using this to find the working directory.

string filename = \"C:\\MyDirectory\\MyFile.b         


        

Answer 1

C++17 provides std::filesystem::path. It may be available in C++11 in ; link with -lstdc++fs. Note the function does not validate the path exists; use std::filesystem::status to determine type of file (which may be filetype::notfound)

Answer 2

You can use the _spliltpath function available in stdlib.h header. Please refer to this link for the same.

http://msdn.microsoft.com/en-us/library/aa273364%28v=VS.60%29.aspx

Answer 3

This is proper winapi solution:

CString csFolder = _T("c:\temp\file.ext");
PathRemoveFileSpec(csFolder.GetBuffer(0));
csFolder.ReleaseBuffer(-1);

Answer 4

The way of Beetle)

#include<tchar.h>

int GetDir(TCHAR *fullPath, TCHAR *dir) {
    const int buffSize = 1024;

    TCHAR buff[buffSize] = {0};
    int buffCounter = 0;
    int dirSymbolCounter = 0;

    for (int i = 0; i < _tcslen(fullPath); i++) {
        if (fullPath[i] != L'\\') {
            if (buffCounter < buffSize) buff[buffCounter++] = fullPath[i];
            else return -1;
        } else {
            for (int i2 = 0; i2 < buffCounter; i2++) {
                dir[dirSymbolCounter++] = buff[i2];
                buff[i2] = 0;
            }

            dir[dirSymbolCounter++] = fullPath[i];
            buffCounter = 0;
        }
    }

    return dirSymbolCounter;
}

Using :

TCHAR *path = L"C:\\Windows\\System32\\cmd.exe";
TCHAR  dir[1024] = {0};

GetDir(path, dir);
wprintf(L"%s\n%s\n", path, dir);

Answer 5

The MFC way;

#include <afx.h>

CString GetContainingFolder(CString &file)
{
    CFileFind fileFind;
    fileFind.FindFile(file);
    fileFind.FindNextFile();
    return fileFind.GetRoot();
}

or, even simpler

CString path(L"C:\\my\\path\\document.txt");
path.Truncate(path.ReverseFind('\\'));

Answer 6

You can simply search the last "\" and then cut the string:

string filePath = "C:\MyDirectory\MyFile.bat" 
size_t slash = filePath.find_last_of("\");
string dirPath = (slash != std::string::npos) ? filePath.substr(0, slash) : filePath;

make sure in Linux to search "/" instead of "\":

size_t slash = filePath.find_last_of("/");