Solved

Create a Path that do not exists

Posted on 2007-11-25
6
601 Views
Last Modified: 2013-12-03
Hi,

someone have a short sample how I can create a path of a given string?

Like Example: I get a CString with a path like: "C:\mypat\myfolder\mySubfolder" It is now posisble that the complete path is not existing or the last folder is not existing. What I need is a function or sample how to create the complet path or the last two folders or the last folder.
I use MFC so MFC is recommended.

Ingo
0
Comment
Question by:Ocrana
6 Comments
 
LVL 55

Expert Comment

by:Jaime Olivares
ID: 20345741
0
 
LVL 40

Expert Comment

by:evilrix
ID: 20346022
This is a fully POSIX compliant solution, it should work on both Windows and Linux: -
#ifdef WIN32

#include "direct.h"

#include "io.h"

#define DEFAULT_DELIM '\\'

#else

#include <sys/stat.h>

#include <unistd.h>

#define _access access

#define _mkdir(path) mkdir(path, 0777)

#define DEFAULT_DELIM '/'

#endif
 

#include "errno.h"

#include <string>
 

void MkDirs(std::string const & sFullPath, char const delim = DEFAULT_DELIM)

{

	std::string::size_type lpos = 0;

	std::string::size_type pos = 0;
 

	while(pos != sFullPath.size())

	{

		pos = sFullPath.find(delim, lpos);

		if(std::string::npos == pos) { pos = sFullPath.size(); }
 

		std::string const & sCurPath = sFullPath.substr(0, pos);
 

		if(!sCurPath.empty() && (-1 == _access(sCurPath.c_str(), 0x00)))

		{

			_mkdir(sCurPath.c_str());

		}
 

		lpos = pos + 1;

	}

}
 

int main()

{

#ifdef WIN32

	MkDirs("temp\\aaa\\bbb\\ccc\\");

#else

	MkDirs("temp/aaa/bbb/ccc/");

#endif

}

Open in new window

0
 
LVL 86

Expert Comment

by:jkr
ID: 20346801
Either use 'SHCreateDirectory()' (http://msdn2.microsoft.com/en-us/library/ms647696.aspx) or if you can't use that for version reasone, try this lil' utility function that does that recursively:

DWORD       ChkCreateDir    (   char*   pszDir)
{
    char    acDir   [   MAX_PATH];
    char*   pc      =   NULL;
    DWORD   dwAtt   =   0;

    dwAtt   =   GetFileAttributes   (   pszDir);

    if  (   FILE_ATTRIBUTE_DIRECTORY    ==  dwAtt)
            return  (   dwAtt);

    strcpy  (   acDir,  pszDir);

    pc  =   strrchr (   acDir,  '\\');

    if  (   pc)
            *pc =   ( char) 0;
     else
            return  (   0xffffffff);

    dwAtt   =   ChkCreateDir    (   acDir);

    if  (   FILE_ATTRIBUTE_DIRECTORY    ==  dwAtt)
        {
            if  (   !CreateDirectory    (   pszDir, NULL))
                {
                    return GetLastError    ();
                }

            return  (   dwAtt);
        }

    return  (   0);
}

However, 'SHCreateDirectory()' definitely is easier to use, you'd just

#include <shlwapi.h>
#pragma comment(lib,"shlwapi.lib")

//...

SHCreateDirectory(NULL,"C:\\mypat\\myfolder\\mySubfolder");
0
Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

 

Author Comment

by:Ocrana
ID: 20386154
jkr: How to use this in Unicode?
0
 
LVL 86

Accepted Solution

by:
jkr earned 500 total points
ID: 20386173
Just

#include <shlwapi.h>
#pragma comment(lib,"shlwapi.lib")

//...

SHCreateDirectory(NULL,_T("C:\\mypat\\myfolder\\mySubfolder"));


or

DWORD       ChkCreateDir    (   wchar_t*   pszDir)
{
    wchar_t    acDir   [   MAX_PATH];
    wchar_t*   pc      =   NULL;
    DWORD   dwAtt   =   0;

    dwAtt   =   GetFileAttributes   (   pszDir);

    if  (   FILE_ATTRIBUTE_DIRECTORY    ==  dwAtt)
            return  (   dwAtt);

    wcscpy  (   acDir,  pszDir);

    pc  =   wcsrchr (   acDir,  L'\\');

    if  (   pc)
            *pc =   ( wchar_t) 0;
     else
            return  (   0xffffffff);

    dwAtt   =   ChkCreateDir    (   acDir);

    if  (   FILE_ATTRIBUTE_DIRECTORY    ==  dwAtt)
        {
            if  (   !CreateDirectory    (   pszDir, NULL))
                {
                    return GetLastError    ();
                }

            return  (   dwAtt);
        }

    return  (   0);
}
0
 

Author Comment

by:Ocrana
ID: 20386229
Hi jkr. Thanks, I opened another question, if you take a look:
http://www.experts-exchange.com/Programming/System/Windows__Programming/Q_22994614.html
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

What my article will show is if you ever had to do processing to a listbox without being able to just select all the items in it. My software Visual Studio 2008 crystal report v11 My issue was I wanted to add crystal report to a form and show…
Container Orchestration platforms empower organizations to scale their apps at an exceptional rate. This is the reason numerous innovation-driven companies are moving apps to an appropriated datacenter wide platform that empowers them to scale at a …
The goal of the video will be to teach the user the concept of local variables and scope. An example of a locally defined variable will be given as well as an explanation of what scope is in C++. The local variable and concept of scope will be relat…
The viewer will learn how to clear a vector as well as how to detect empty vectors in C++.

948 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

18 Experts available now in Live!

Get 1:1 Help Now