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Old 06-27-2004, 11:11 PM   #1
poeta_boy
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create a directory in C++


hello:

I'm using ofstream to create a file and write on it, however I'd like also to create a directory and there to put the file.... will ofstream create the dir automatically if I do:

ofstream file("c:/dir/file.dat", ios :: out);

thanks for your help!!!

Poeta

Last edited by poeta_boy; 06-27-2004 at 11:32 PM.
 
Old 06-28-2004, 10:50 AM   #2
nimra
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It's really not a good solution, but you can make use of the system statement...

Code:
system("mkdir <path>\<dir>");
 
Old 06-28-2004, 10:57 AM   #3
Dergro
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You can use mkdir(2)

Code:
int
mkdir(const char *path, mode_t mode);
 
Old 06-29-2004, 04:02 PM   #4
poeta_boy
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the mkdir prototipe is included in which library?

thanks
 
Old 06-29-2004, 04:23 PM   #5
keefaz
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#include <sys/stat.h>
#include <sys/types.h>

do man 2 mkdir for more infos

[edit]
Forget it, I did not see you program in windows platform

Last edited by keefaz; 06-29-2004 at 04:24 PM.
 
Old 06-29-2004, 10:07 PM   #6
poeta_boy
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thanks a lot, but I do need it for windows
 
Old 07-01-2004, 12:43 AM   #7
poeta_boy
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I've managed to do it... or almost:

I have this string:

string path; // have to convert it to char* so it's usable

char *temp = new char[path.length());

for(int i = 0; i < path.length(); i++)
temp[i] = path[i];

now, after including direct.h

_mkdir(temp);

and that would be it.... however, lets say the original string contains:

path = "C:/file";

after the convertion to char* I get:

C:/fil═

why is that happening? the new dir C:/fil═ does appear....

Thanks a lot!


(My post number 100th!!!)
 
Old 07-02-2004, 07:15 AM   #8
keefaz
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Did you try :
_mkdir( path.c_str() );
?
 
Old 07-02-2004, 09:10 AM   #9
poeta_boy
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thanks a lot, actually I had to copy each char with a for loop, but now I added the 0 char at the end and it worked just fine.. I didn't know of that
c_str() thing but I'll use now

Thanks!
 
Old 11-02-2011, 12:32 PM   #10
sharky
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Is it really that difficult to make a directory with c++ in Linux? After reading all this I still don't have a clue and I can't get anything to work.

I'm using g++ 3.4.6. If I want to create a directory in the local run directory call 'buzz' how do I do it without using a system call?
 
Old 11-02-2011, 12:56 PM   #11
SigTerm
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Quote:
Originally Posted by sharky View Post
Is it really that difficult to make a directory with c++ in Linux? After reading all this I still don't have a clue and I can't get anything to work.

I'm using g++ 3.4.6. If I want to create a directory in the local run directory call 'buzz' how do I do it without using a system call?
Please refrain from using necromancy on the forums. This thread is 7 years old.

C++ does not have function for making a directory, because "directory" is a feature of operating system, and C++ is cross-platform. Function for making a directory is normally provided by operating system.
In case of linux the function could be easily found if you actually tried to read the manual.
 
Old 11-02-2011, 01:04 PM   #12
NevemTeve
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Quote:
Originally Posted by sharky View Post
Is it really that difficult to make a directory with c++ in Linux? After reading all this I still don't have a clue and I can't get anything to work.
Re-read it again, you will find these:
man 2 mkdir
mkdir ("buzz", 0755);
 
Old 11-02-2011, 01:24 PM   #13
sharky
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Quote:
Originally Posted by SigTerm View Post
Please refrain from using necromancy on the forums. This thread is 7 years old.

C++ does not have function for making a directory, because "directory" is a feature of operating system, and C++ is cross-platform. Function for making a directory is normally provided by operating system.
In case of linux the function could be easily found if you actually tried to read the manual.
It came up on a search. Thanks for the help.
 
Old 11-02-2011, 01:28 PM   #14
sharky
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This is what worked for me.

Quote:
string PROJ;
getline (cin, PROJ);
const char * cPROJ = PROJ.c_str();
mkdir(cPROJ,0750);
The key was converting the string to char.

This also worked.

Quote:
string PROJ;
getline (cin, PROJ);
mkdir(PROJ.c_str(),0750);
Sorry for the "necromancy" but why does it matter?
 
Old 11-02-2011, 01:30 PM   #15
sharky
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Quote:
Originally Posted by NevemTeve View Post
Re-read it again, you will find these:
man 2 mkdir
mkdir ("buzz", 0755);
Thanks,
 
  


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