Re: Best way to do simple binary file I/O?
Re: Best way to do simple binary file I/O?
- Subject: Re: Best way to do simple binary file I/O?
- From: Charles Steinman <email@hidden>
- Date: Fri, 28 Dec 2007 20:16:49 -0800 (PST)
Just as a reminder: Raw binary I/O like this is likely
to break across architectures. It also doesn't mesh
very well with Cocoa objects, whose internal structure
is generally private. The safer and more standard
Cocoa way of doing it would be either to write an
XML/plist document or to archive objects with
NSKeyedArchiver.
Cheers,
Chuck
--- William Squires <email@hidden> wrote:
> In C, I would just define a struct
>
> typedef struct _mytype {
> /* field definitions */
> } MyType, *MyTypePtr;
>
> then, in code somewhere...
>
> ...
> FILE *fp;
> int i;
>
> ...
> fp = fopen(<filename>, "rb");
> i = fread(fp, sizeof(MyType), 1);
> while (<some condition based on what was read in>)
> {
> /* Process one record... */
> ...
>
> /* Read another */
> i = fread(fp, sizeof(MyType), 1);
> }
> fclose(fp);
> ...
>
> What's the ObjC (OO) recommended methodology for
> this now? (for just
> a Core Foundation tool)
>
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