On Thu, Nov 20, 2008 at 12:27 AM, Austin Ziegler <[EMAIL PROTECTED]> wrote: > For a project that I'm working on, I have a need to write a code > generator that will wrap certain kinds of C functions as Objective C > messages on an Objective C proxy. Because I don't ultimately control > the input, the parameters on the C functions may be poorly named. I'm > looking for advice on how one might make useful object message names > from C functions. > > The format of the functions in question is essentially like this[1]: > > int ns__add(double a, double b, double *result); > int ns__sub(double a, double b, double *result); > int ns__mul(double a, double b, double *result); > int ns__div(double a, double b, double *result); > int ns__pow(double a, double b, double *result); > > The int return is a status code; the result of the operation is in > double* result. If there's an error in the operation. (The status code > may be ignorable, in which case part of my following question is > answered; I'm still researching this part. I suspect that it is best > not ignored.) > > Anyway, the problem is how I should convert this function with poorly > named parameters into a proxy object and messages? > > The options that I've come up with (expressed in terms of use) follow. > They're all expressed in terms of an object ns__CalcProxy: > > ns__CalcProxy calc = [[ns__CalcProxy alloc] init]; > double a, b, result; > int status; > > result = [calc addDoubleA:a withDoubleB:b]; // #1 > result = [calc addDoubleA:a withDoubleB:b status:&status]; // #2 > status = [calc addDoubleA:a withDoubleB:b returning:&result]; // #3
Please excuse a foolish question, but.... Why wrap this in Objective-C at all? Looks like the resulting ObjC code is essentially the same, except uglier, slower, and harder to use. Why not just keep the C and use it directly? Mike _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
