I am having difficulty reading in files that end in a specific extension. Essentially, I would like to open all of the files of a certain type within a folder that inludes files of various types. I am using dirent.h as my header file and (if it matters) my complier is Xcode. Any help, or, if possible, source code would be greatly appreciated. Thanks everyone!
-romanpitch
So is your approach to read all the files, then match the extension?
If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
If at first you don't succeed, try writing your phone number on the exam paper.
Code://Find First File HANDLE hFind; WIN32_FIND_DATA FindData; string file = "\\*.*"; hFind = FindFirstFile ((file).c_str(), &FindData); doSomething(FindData.cFileName); // Look for more while (FindNextFile(hFind, &FindData)) { doSomething(FindData.cFileName, ); }
I didn't think they wanted a Win32 answer mikeman118.
If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
If at first you don't succeed, try writing your phone number on the exam paper.
This FAQ tells how to read ALL files in a given directory [in teh fourth or so subsection]:
http://faq.cprogramming.com/cgi-bin/...&id=1045780608
From there, you need to use some "string pattern matching", e.g.
This code is untested, and I'm sure somone will poke holes in it... But it should give you an idea of how to do it.Code:int hasExt(const char *name, const char *ext) { int nlen = strlen(name); int elen = strlen(ext); // Check first if there's a chance! if (nlen < elen) { return 0; } int index = nlen - elen; for(int i = 0; i < elen; i++) { if (elen[i] != name[index+i]) { return 0; } } // If we get here, it's a match! return 1; }
Also, the above code is just checking if the file ends with "ext", so you could sayand it would match "foo1.c" and "blah1.c" for example.Code:hasExt(name, "1.c");
It's not strictly C++, as it doesn't use strings, but neither does readdir(), so I don't think that should be a requirement.
--
Mats
Compilers can produce warnings - make the compiler programmers happy: Use them!
Please don't PM me for help - and no, I don't do help over instant messengers.
How about just using glob()? MacOS X provides that, doesn't it?
All the buzzt!
CornedBee
"There is not now, nor has there ever been, nor will there ever be, any programming language in which it is the least bit difficult to write bad code."
- Flon's Law
I just figured that as long as it worked no one would care whether or not it was windows... unless they were using linux.Originally Posted by Salem
Xcode is the Mac OS X environment.
All the buzzt!
"There is not now, nor has there ever been, nor will there ever be, any programming language in which it is the least bit difficult to write bad code."
- Flon's Law
