Solved

Create a Path that do not exists

Posted on 2007-11-25
6
610 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
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
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
Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 

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

Salesforce Has Never Been Easier

Improve and reinforce salesforce training & adoption using WalkMe's digital adoption platform. Start saving on costly employee training by creating fast intuitive Walk-Thrus for Salesforce. Claim your Free Account Now

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
How do i run a c++ file? 15 58
How to add columns to a RAD Studio FMX grid at design time 1 59
Mobile apps - web/native or hybrid? 1 120
Notepad++ Question 11 26
For most people, the WrapPanel seems like a magic when they switch from WinForms to WPF. Most of us will think that the code that is used to write a control like that would be difficult. However, most of the work is done by the WPF engine, and the W…
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 viewer will learn how to user default arguments when defining functions. This method of defining functions will be contrasted with the non-default-argument of defining functions.
The viewer will be introduced to the member functions push_back and pop_back of the vector class. The video will teach the difference between the two as well as how to use each one along with its functionality.

739 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