How to fopen() on the iPhone?
The iPhone SDK docs claim fopen() is a supported method of file access but I am unable to get it to return a FILE handle. I am accessing a directory which is included in my project. I have tried fopen "filename","dir/filename","./filename","./dir/filename","/dir/filename" all returning with a null pointer. Some people report using it with no issue so I am sure it is something simple!
if you're trying to access a file within your application bundle, you need to get the full path to it: [[NSBundle mainBundle] pathForResource: FILENAME ofType: FILEEXTENSION]
This returns an NSString, which you can pull a UTF8String out of and pass to fopen.
Just to be clear to open a file "some.txt"...
NSString * path = [[NSBundle mainBundle] pathForResource: @"some" ofType: @"txt"]; FILE *f = fopen([path cStringUsingEncoding:1],"r"); if (f == NULL) NSLog([path stringByAppendingString:@" not found"]);