Re: What causes NSFileManager's stringWithFileSystemRepresentation to return nil?
Re: What causes NSFileManager's stringWithFileSystemRepresentation to return nil?
- Subject: Re: What causes NSFileManager's stringWithFileSystemRepresentation to return nil?
- From: Andy Lee <email@hidden>
- Date: Tue, 26 Oct 2010 08:08:57 -0400
On Oct 26, 2010, at 7:29 AM, G S wrote:
> Hi all. I'm giving this function what appears to be a perfectly good path:
>
> /Users/me/Library/Application Support/iPhone
> Simulator/4.2/Applications/58BD5465-FD47-49E3-83AC-242961559F48/Library/Caches/4320_th.jpg
>
> and it returns nil.
Using the exact string above, this works fine for me:
char *cp = "/Users/me/Library/Application Support/iPhone Simulator/4.2/Applications/58BD5465-FD47-49E3-83AC-242961559F48/Library/Caches/4320_th.jpg";
NSString *s = [[NSFileManager defaultManager] stringWithFileSystemRepresentation:cp length:strlen(cp)];
NSLog(@"cp is [%s]", cp);
NSLog(@"s is [%@]", s);
I get:
2010-10-26 08:02:23.877 Scratcho[3862:a0f] cp is [/Users/me/Library/Application Support/iPhone Simulator/4.2/Applications/58BD5465-FD47-49E3-83AC-242961559F48/Library/Caches/4320_th.jpg]
2010-10-26 08:02:23.878 Scratcho[3862:a0f] s is [/Users/me/Library/Application Support/iPhone Simulator/4.2/Applications/58BD5465-FD47-49E3-83AC-242961559F48/Library/Caches/4320_th.jpg]
Show us your exact code. Is your C string null-terminated? Does strlen() return the number of characters you'd expect? Try logging the C string as I did above (I put the square brackets around it to make sure I spot any leading or trailing whitespace).
I ran my code in a Cocoa app, not the iPhone simulator, but offhand I can't think of a reason that NSFileManager method would be different on the two platforms.
--Andy
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