are there c++ classes that provide file, directory or file systemfunctionality?

[darren]

Hello

In a program i'm writing, I need to be able to serve files from a
specified directory. I don't want to reinvent the wheel by writing a
class that provides basic directory a file functionality if something
similar already exists. I'm looking for something similar to what;s
provided in java i guess. The ability to list files in a given
directory, support for ".." "." etc.

After googling around a bit, its apparent that this functionality is
not built into the language itself, and is fairly OS dependant. i'm
mainly interesting in targeting a unix environment. I've found
frameworks like Boost, which look pretty cool, but a specification for
this assignment, is that no libraries are allowed in the deliverable.
In other words, Boost is out, because the submission must only be
source code.

I would appreciate any advice on how you guys get such information
about a file system in your programs, or if you know of any helpful
resources. Thanks.

 

[Juha Nieminen]

After googling around a bit, its apparent that this functionality is
not built into the language itself, and is fairly OS dependant. i'm
mainly interesting in targeting a unix environment. I've found
frameworks like Boost, which look pretty cool, but a specification for
this assignment, is that no libraries are allowed in the deliverable.
In other words, Boost is out, because the submission must only be
source code.

You have to create system-specific code, but you are not allowed to
use libraries? Isn't that kind of an impossible problem?

 

[Ian Collins]

You have to create system-specific code, but you are not allowed to
use libraries? Isn't that kind of an impossible problem?

Well boost.filesystem is header only, so if the rules are flexible, it
might be OK.

 

[Erik Wikström]

You have to create system-specific code, but you are not allowed to
use libraries? Isn't that kind of an impossible problem?

It says nothing about not using libraries, just not shipping them.

To the OP: If you can limit yourself to targeting only POSIX compliant
systems you can use the POSIX functions for accessing the files:

http://opengroup.org/onlinepubs/007908775/xsh/fcntl.h.html
http://opengroup.org/onlinepubs/007908775/xsh/dirent.h.html

 

[David Côme]

Hello

In a program i'm writing, I need to be able to serve files from a
specified directory. I don't want to reinvent the wheel by writing a
class that provides basic directory a file functionality if something
similar already exists. I'm looking for something similar to what;s
provided in java i guess. The ability to list files in a given
directory, support for ".." "." etc.

After googling around a bit, its apparent that this functionality is
not built into the language itself, and is fairly OS dependant. i'm
mainly interesting in targeting a unix environment. I've found
frameworks like Boost, which look pretty cool, but a specification for
this assignment, is that no libraries are allowed in the deliverable.
In other words, Boost is out, because the submission must only be
source code.

I would appreciate any advice on how you guys get such information
about a file system in your programs, or if you know of any helpful
resources. Thanks.

Look at boost::filesystem

 

[Frank Birbacher]

Hi!

Well boost.filesystem is header only, so if the rules are flexible, it
might be OK.

It is not. Boost filesystem needs .cpp files and even depends on the
Boost System library.

But the OP might as well include the whole boost source code in its
delivery. Or at least the parts needed.

I think this is either a class about C++ programming, in which case you
cannot traverse the directories at all, or this is a Unix programming
class, in which case you can use the POSIX functions. Either way ask the
teacher about it.

Frank